EAI Endorsed Transactions on Mobile Communications and Applications is a scholarly archival journal that is committed to the timely publication of high-quality original research papers on all aspects of mobile communications theories, technologies, systems, and applications. All submissions will go through a rigorous peer-review process, and be reviewed by expert referees and evaluated by the editorial board.

Areas of interests include but are not limited to:

Mobile cellular networks
Mobile ad hoc networks
Mobile Internet
WiMAX networks
Vehicular networks
Wireless sensor networks
Satellite communications systems
Mobile system and network architectures
Network control and management
Mobility management
Modulation and coding techniques
Quality of service
Reliability and fault tolerance
Security and privacy
Mobile applications and services
Performance modelling and analysis

Dr. Nirwan Ansari (Department of Electrical and Computer Engineering, New Jersey Institute of Technology, USA)
Dr. Raj Jain (Department of Computer Science and Engineering, Washington University in St. Louis, USA)
Dr. Tigang Jiang (UESTC)
Dr. Nei Kato (Graduate School of Information Sciences, Tohoku University, Japan)
Dr. Tiffany Jing Li (Department of Electrical and Computer Engineering, Lehigh University, USA)
Dr. Tommaso Melodia (Department of Electrical Engineering, State University of New York at Buffalo, USA)
Dr. Claude Oestges (Microwave Laboratory, Université catholique de Louvain (UCL), Belgium)
Dr. Kostas Pentikousis (European Research Centre, Huawei Technologies, Germany)
Dr. Charles E. Perkins (WiChorus Inc., USA)
Dr. Martin Reisslein (Department of Electrical Engineering, Arizona State University, USA)
Dr. David Simplot-Ryl (Fundamental Computer Science Laboratory, Centre de recherche INRIA Lille,
Dr. Wenye Wang (Department of Electrical and Computer Engineering, North Carolina State University, USA)
Dr. Baoxian Zhang (Graduate University, Chinese Academy of Sciences, China)
Dr. Cristian Borcea (NJIT)
Dr. Paolo Bellavista (University of Bologna)
Dr. Jian Ren (Michigan State University)
Dr. Lei Chen (Georgia Southern University)
Dr. Houbing Song (Embry-Riddle Aeronautical University)
Dr. Dalei Wu (The University of Tennessee at Chattanoog, USA)
Dr. Jianjun Yang, Department of Computer Science, University of North Georgia, USA
Dr. Qing Yang (University of North Texas)
Dr. Shaoen Wu (Ball State University, USA)
Dr. Dapeng Wu (Chongqing University of Posts and Telecommunications)
Dr. Ruoling Zhou, Department of Electrical and Computer Engineering, University of Massachusetts Dartmouth, USA

Honggang Wang¹

Dr. Honggang Wang is a tenured associate professor at UMass Dartmouth and is an affiliated faculty member of Advanced Telecommunications Engineering Laboratory at University of Nebraska-Lincoln. His research interests include Wireless Health, Body Area Networks (BAN), Cyber and Multimedia Secuity, Mobile Multimedia and Cloud, Wireless Networks and Cyber-Physical Systems, and BIG DATA in mHealth. He received "Scholar of the Year" Award (only one per year) in 2016 from UMass Dartmouth, which is the highest research recognition from the university. He has published more than 150 papers in his research areas. He received several Best Paper Awards (BPA) such as from 2008 IEEE Wireless Communications and Networking Conference (WCNC). He is associate Editor-in-Chief of IEEE Internet of Things journal, Editor-in-Chief of the EAI Transactions on Mobile Communications and Applications, an Associate Editor of IEEE Transactions on Multimedia, an Editor of IEEE Transactions on Vehicular Technology, an Associate Editor of IEEE Transactions on Big Data, an Associate Technical Editor of IEEE Communication Magazine, an Associate Editor of IEEE Access Journal. He also serves as TPC Chair or Co-Chair for several conferences such as TPC Chair of the 8th ICST/ACM International Conference on Body Area Networks (BODYNETS 2013), TPC Co-Chair of BODYNETS 2015, TPC symposium Co-Chair of IEEE conference on communications 2015 (ICC 2015, Mobile and Wireless Networking symposium), TPC Chair of IEEE HEALTHCOM 2015, TPC Co-Char of IEEE ISCC 2015, General Chair/Co-Chair of ICST/ACM Mobimedia 2015, 2016 and 2017, TPC Chair/Co-Chair of IEEE ICNC 2017 and 2008. He also serves as the steering committee Co-Chair of IEEE CHASE and TPC Co-Chair of IEEE CHASE 2016 and General Co-Chair of IEEE CHASE 2017, which is a leading international conference in the field of connected health. He is the TPC member for IEEE INFOCOM 2013-2015, BSN 2014 (ETH Zurich), BSN 2015 (MIT), IEEE ICDCS 2015, ACM Multimedia 2017, IEEE ICC 2011-2016, IEEE Globecom 2010-2016, IEEE ICME 2013-2017 and Area Chair of IEEE ICME 2016 and 2017. He serves on NSF panel 2012-2016. He currently serves as Vice Chair of IEEE MMTC (Technical Commitee on Multimedia Communications Technical Committee) and received the IEEE Multimedia Communications Technical Committee (MMTC) Outstanding Leadership Award (2015) and the IEEE HEALTHCOM 2015 Outstanding Service Award. He is currently Secretary of IEEE Comsoc e-Health Committee. His research is supported by NSF (total amount over 1.4M dollars), DoT, UMass President office, and UMass Healey Grant (total over 2M dollars).

Dapeng Wu²

Dapeng Wu is currently a professor at the Chongqing University of Posts and Telecommunications, Chongqing, China. He authored more than 100 publications and two books. He is the inventor and co-inventor of 28 patents and patent applications. His research interests are in social computing, wireless networks, and big data. Prof. Wu serves as TPC Chair of 10th Mobimedia and program committee member for numerous international conferences and workshops. He served or is serving as an Editor or/and Guest Editor for several technical journals, such as Elsevier Digital Communications and Networks, ACM/Springer Mobile Network and Applications. He is a senior member of the IEEE.

1: University of Massachusetts Dartmouth, USA
2: Chongqing University of Posts and Telecommunications, China

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Crypto Model of Real-Time Audio Streaming Across Paired Mobile Devices
Appears in:
mca 18: e1

Authors:
E. O. Ibam, O. K. Boyinbode, I. O. Ayelabowo

Published:
21st Oct 2019

Abstract:
The progressive usage of the Internet of Things (IoT) and smartphone ubiquity is inducing attention, importance and interest in leveraging smartphones for deploying and running sophisticated mobile applications. Modern smartphones have good connectivity, a significant amount of processing, and are …The progressive usage of the Internet of Things (IoT) and smartphone ubiquity is inducing attention, importance and interest in leveraging smartphones for deploying and running sophisticated mobile applications. Modern smartphones have good connectivity, a significant amount of processing, and are always with us, making them an ideal candidate for
envisioned applications that can serve as a means of ensuring the safety and security of mankind. This research aims at developing a real-time audio encryption application between two or more handheld mobile devices, the communication between devices is made secure by encrypting the audio sent in real-time using Advanced Encryption Standard (AES) 256-bit encryption key while channelling message through a cloud-hosted database (Firebase) that works as a real-time database and performs implicit AES encryption and decryption on its data. Geocoder from the Google Map API library services is used to track the location of the audio sender.
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Investigation on FOG Computing for 5G- Enabled Software Defined Multicast Networks
Appears in:
mca 19(16): e5

Authors:
N. N. Eya, G. A Oguntala, R. A. Abd-Alhameed

Published:
31st Jan 2019

Abstract:
5G enabling technologies and applications has been proposed in Multicast or group communication to solve the challenge of increasing demand of mobile data traffic. One of the key 5G technologies that would address the increase in mobile traffic is network densification, poses a challenge to group c…5G enabling technologies and applications has been proposed in Multicast or group communication to solve the challenge of increasing demand of mobile data traffic. One of the key 5G technologies that would address the increase in mobile traffic is network densification, poses a challenge to group communication. With group communication, several groups are formed into clusters and this technique promises to improve various services in 5G network technology by way of efficient management. As a result, this paper proposes a 5G-enabled software defined multicast networks (5G-SDMNs), where
software-defined networking (SDN) is exploited to dynamically manage multicast groups in 5G and mobile multicast environment. Also, mobile edge computing (MEC) is exploited to strengthen network control of 5G-SDMN. The
combination of SDN and MEC ensures a flexible, cheap, programmable, and manageable network architecture is proposed for 5G-SDMN. This architecture promises a simplified network management, an improved resource management and a sustainable network development. This article also presents a case study of multicast cloud computing and enumerates the advantages of 5G-SDMN. In the end, open issues in 5G-SDVN are identify and discuss.
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Mobility and Fault Aware Adaptive Task Offloading in Heterogeneous Mobile Cloud Environments
Appears in:
mca 19(16): e4

Authors:
Abdullah Lakhan, Xiaoping Li

Published:
31st Jan 2019

Abstract:
Nowadays, Mobile Cloud Computing (MCC) has become a predominant prototype for fetching the benefits of cloud computing to mobile devices’ propinquity. Service availability in addition to performance enhancement and mobility features is a preliminary goal in MCC. This paper proposes a mobility aware…Nowadays, Mobile Cloud Computing (MCC) has become a predominant prototype for fetching the benefits of cloud computing to mobile devices’ propinquity. Service availability in addition to performance enhancement and mobility features is a preliminary goal in MCC. This paper proposes a mobility aware adaptive offloading framework, known as Mob-Cloud, which includes a mobile device as a thick client, ad-hoc networking, cloudlet DC, and remote cloud services, to augment the performance and availability of the MCC services.
However, the impact of dynamic changes in a mobile content (e.g., network status, bandwidth, latency, and
location) for the task offloading model observes through proposing a mobility aware adaptive task offloading
algorithm (MATOA), which makes a task offloading decision at runtime on selecting optimal wireless network
channels and suitable resources for offloading. In this paper, we are formulating the decision problem, and it is
well-known as an NP-hard problem. Nonetheless, MATOA has the following phases for the entire Mob-Cloud
model: (i) adaptive offloading decision based on real-time information, (ii) workflow task scheduling phase,
(iii) mobility model phase to motivate end-user invoke cloud services seamlessly while roaming, and (iv) faulttolerant phase to deal with failure (either network or node). We carry out actual real-life experiments at the
implemented instruments to evaluate the overall performance of the MATOA algorithm. Evaluation results
prove that MATOA adopts dynamic changes on offloading decision during run-time, and meet an enormous
reduction in the total response time with the improved service availability whilst in comparison with the
baseline task offloading strategies.
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Automated control signal reception acknowledgement system using nRF24L01P wireless transceiver module and Arduino
Appears in:
mca 19(16): e3

Author:
Mobasshir Mahbub

Published:
31st Jan 2019

Abstract:
In this era of modern technology wireless control system is a most used method to control electrical or electronic devices and/or monitoring from a distant part. It is very easier and cost effective to implement a wireless system. Because there are barriers in implementing wired system. That is w…In this era of modern technology wireless control system is a most used method to control electrical or electronic
devices and/or monitoring from a distant part. It is very easier and cost effective to implement a wireless system.
Because there are barriers in implementing wired system. That is why wireless system is much effective than wired.
But the wireless system has also some problems or deficits. One of them is signal loss during the transmission due to
various causes like surrounding environmental reason and others. If transmitted signal is lost the receiver will remain
completely blind as it is not receiving the signal. Another one can be the receiver is unable to receive signal due to the
technical fault of receiver end whether the transmitted signal is stable. That is why an acknowledgement system is
necessary to determine whether the receiver is receiving the transmitted signal or not. The developed system is an
effective and low cost system with nRF24L01P transceiver module and Arduino Uno to determine that the receiver is
working accordingly or not or is there any technical fault.
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Transmission Power and Effects on Energy Consumption and Performance in MANET
Appears in:
mca 19(16): e2

Authors:
S. Blakeway, A. Kirpichnikova, M. Schaeffer, E. L. Secco

Published:
31st Jan 2019

Abstract:
This paper explores the effect that transmission power has on the performance of a Mobile Ad hoc Network (MANET). The goal of this research is to determine if the lifetime of the network can be prolongated by using less energy and thus, resulting in a more energy efficient ‘greener’ architecture. A…This paper explores the effect that transmission power has on the performance of a Mobile Ad hoc Network (MANET). The goal of this research is to determine if the lifetime of the network can be prolongated by using less energy and thus, resulting in a more energy efficient ‘greener’ architecture. A total of 72 unique simulations are conducted of various configurations
covering a large variety of possible scenarios: we examined configurations with a different number of nodes, number of traffic flows, mobility model, transmission power and geographical areas. Results show that there is an optimal transmission power, which enhances greater network performance: moreover, this optimal transmission setting makes the network more
energy efficient in terms of depletion of the finite energy sources of the nodes. Our overall findings also confirm that higher transmission power results in less energy consumption.
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Power Optimization of WiFi Networks based on RSSI-awareness
Appears in:
mca 19(16): e1

Authors:
Bo Chen, Xi Li, Xuehai Zhou

Published:
31st Jan 2019

Abstract:
This research analyzed the impact of Wi-Fi received signal strength indication (RSSI) on power consumption of smart phones under different network environments. It was found that bad signal may lead to decrease in network link speed but increase in power consumption; whereas good signal contribut…This research analyzed the impact of Wi-Fi received signal strength indication (RSSI) on power consumption
of smart phones under different network environments. It was found that bad signal may lead to decrease
in network link speed but increase in power consumption; whereas good signal contributed to rapid
transmission and low power consumption. To reduce the power consumption and prolong the battery life,
through combination with the original IEEE 802.11 PS mechanism, an optimization mechanism based on
RSSI-awareness was proposed which aggregated network packets and delayed transmission. In essence, the
proposed mechanism functioned through decreasing the number of mode switches of Wi-Fi component
and extending the time of Wi-Fi stay in the Power-Save (PS) mode. Specifically, the signal strength was
divided into three levels, including "good", "weak" or "bad". The decision tree was used to choose the best
transmission method (Normal / Lineral / Exporational Transmission) according to previous and current signal
strength. Algorithms were introduced to select the best split of decision tree for partitioning specific records
into smaller subsets. Finally, the proposed mechanism was performed on the TI pandaboard platform. The
results indicated that the proposed mechanism was practical and able to reduce the power consumption of
smartphones in an effective manner.
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An Innovative Secure Approach to Detect Clone Node Intruder in Homogeneous Wireless Sensor Network
Appears in:
mca 18(15): e5

Authors:
M. Thirunavukkarasan, S.A. Sahaaya Arul Mary

Published:
14th Dec 2018

Abstract:
Detection of a cloned node intruder in Homogenous Wireless Sensor Networks has many useful applications in terms that they can be deployed in war zones for detecting intruder (enemies) and uniquely identifies them which help in preventing any harmful situation they can create when they continue to …Detection of a cloned node intruder in Homogenous Wireless Sensor Networks has many useful applications in terms that they can be deployed in war zones for detecting intruder (enemies) and uniquely identifies them which help in preventing any harmful situation they can create when they continue to exist inside the system. This intrusion detection system is used to identify the mismatched, malicious, non-orientable nodes and false committing nodes. This paper, proposes a novel hub clone location convention method with various tradeoffs of execution and arranged conditions. First depends on a conveyed hash table, by which a completely decentralized, key-based storing and checking framework is developed to get cloned hubs successfully. Second depends on dispersed recognition convention, named arbitrarily coordinated investigation, introduces great correspondence execution for thick sensor systems, by a probabilistic coordinated sending method alongside irregular starting bearing and fringe assurance. The reproduction comes about maintain the convention outline and demonstrate its effectiveness on correspondence overhead and attractive identification probability.
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Survey of Context-Aware Video Transmission over Vehicular Ad-Hoc Networks (VANETs)
Appears in:
mca 18(15): e4

Authors:
Reem F. Shaibani, Ammar T. Zahary

Published:
14th Dec 2018

Abstract:
Vehicular ad-hoc networks (VANETs) are defined as a group of wireless mobile nodes that characterized by their high mobility. Therefore, the topology frequently changes and high communication overhead for exchanging a new topology information has been introduced. Due to the huge enrichment by the v…Vehicular ad-hoc networks (VANETs) are defined as a group of wireless mobile nodes that characterized by their high mobility. Therefore, the topology frequently changes and high communication overhead for exchanging a new topology information has been introduced. Due to the huge enrichment by the video data based on the quality of experience recognized by the driver and knowledge of the environment , video transmission over VANETs has been considered as a critical challenge. Context-aware vehicular ad-hoc network is a novel field that introduces developed solutions for the previous challenges in VANETs and guarantees the stability of its topology through different high mobility of nodes. In this paper, we investigated the general issues related to VANETs such as characteristics, applications, and current challenges. Furthermore, we reviewed the most significant relevant studies that apply a context-aware issue as a new technique in vehicular networks that helps to overcome VANETs challenges.
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Optimal ZF Precoder for MU massive MIMO Systems over Ricean Channel with per Antenna Power Allocation
Appears in:
mca 18(15): e3

Authors:
James Kweku Nkrumah Nyarko, Christian Ango Mbom

Published:
14th Dec 2018

Abstract:
Multiuser massive multiple-input multiple-output systems have the potential to increase the data rate. However, with a large base station (BS) antenna, the non-square channel matrix restricts the zero-forcing (ZF) precoder rotations to obtain the best optimal solution with the per-antenna power all…Multiuser massive multiple-input multiple-output systems have the potential to increase the data rate. However, with a large base station (BS) antenna, the non-square channel matrix restricts the zero-forcing (ZF) precoder rotations to obtain the best optimal solution with the per-antenna power allocation. In this paper, we propose the beamforming and lattice reduction (LR) approach to restrain the channel matrix and transform the lattice of the channel vectors to be near orthogonal. Numerical results show that the LR-based ZF precoder outperforms other ZF precoder schemes, such as, the norm approximation of the beamforming matrix. In particular, the sum rate of the proposed optimal ZF precoder requires a small number of BS antenna. Subsequently, with the strong line of sight (LoS) channel, the optimal power allocations in the subchannels depend on the dominance of the users in order to achieve substantial multiplexing and diversity gains. Speciﬁcally, the Ricean channel gain with the water-ﬁlling allocation at high SNR is non-negligible.
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Implementation of Cognitive Radio Network Testbed for Multimedia Communications
Appears in:
mca 18(15): e2

Authors:
Patrick DaSilva, Anuja Ghising, Siddharth Patil, Honggang Wang

Published:
14th Dec 2018

Abstract:
A cognitive radio is a form of wireless communication in which a transceiver can intelligently detect which communication channels are in use and which are not, and instantly move into vacant channels while avoiding occupied ones. This intelligently avoids interference amongst users and provides th…A cognitive radio is a form of wireless communication in which a transceiver can intelligently detect which communication channels are in use and which are not, and instantly move into vacant channels while avoiding occupied ones. This intelligently avoids interference amongst users and provides the ability to use up all available bandwidth on the RF spectrum. There are many ways in which the communication can be demonstrated. This paper examines how we have implemented a cognitive radio network testbed using software defined radios (SDRs) for multimedia communications, where components that have been traditionally implemented in hardware are instead implemented by means of software on a personal computer or embedded system to communicate and transfer a file between each other. We attempt to demonstrate potential use of SDRs for future multimedia applications.
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SilentPhone: Inferring User Unavailability based Opportune Moments to Minimize Call Interruptions
Appears in:
mca 18(15): e1

Author:
Iqbal H. Sarker

Published:
8th Oct 2018

Abstract:
The increasing popularity of cell phones has made them the most personal and ubiquitous communication devices nowadays. Typically, the ringing notiﬁcations of mobile phones are used to inform the users about the incoming calls. However, the notiﬁcations of inappropriate incoming calls sometimes cau…The increasing popularity of cell phones has made them the most personal and ubiquitous communication devices nowadays. Typically, the ringing notiﬁcations of mobile phones are used to inform the users about the incoming calls. However, the notiﬁcations of inappropriate incoming calls sometimes cause interruptions not only for the users but also the surrounding people. In this paper, we present a data-driven approach to infer the opportune moments for such phone call interruptions based on user’s unavailability, i.e., when a user is unable to answer the incoming phone calls, by analyzing individual’s past phone log data, and to discover the corresponding phone silent mode conﬁguring rules for the purpose of minimizing call interruptions in an automated intelligent system. Experiments on the real mobile phone datasets show that our approach is able to identify the opportune moments for call interruptions and generates corresponding silent mode conﬁguring rules by capturing the dominant behavior of individual users’ at various times-of-the-day and days-of-the-week.
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GNSSim: An Open Source GNSS/GPS Framework for Unmanned Aerial Vehicular Network Simulation
Appears in:
mca 15(6): e2

Authors:
Farha Jahan, Ahmad Y. Javaid, Weiqing Sun, Mansoor Alam

Downloads:
1849

Abstract:
Unmanned systems are of great importance in accomplishing tasks where human lives are at risk. These systems are being deployed in tasks that are time-consuming, expensive or inconclusive if accomplished by human intervention. Design, development and testing of such vehicles using actual hardware c…Unmanned systems are of great importance in accomplishing tasks where human lives are at risk. These systems are being deployed in tasks that are time-consuming, expensive or inconclusive if accomplished by human intervention. Design, development and testing of such vehicles using actual hardware could
be quite costly and dangerous. Another issue is the limited outdoor usage permitted by Federal Aviation Administration regulations, which makes outdoor testing difficult. An optimal solution to this problem is to have a simulation environment where different operational scenarios, newly developed models, etc., can
be studied. In this paper, we propose GNSSim, a Global Navigation Satellite System (GNSS) simulation framework. We demonstrate its effectiveness by integrating it with UAVSim. This allows users to experiment easily by adjusting different satellite as well as UAV parameters. Related tests and evidence of the correctness
of the implementation are presented.
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Introducing a Distance Vector Routing Protocol for ns-3 Simulator
Appears in:
mca 16(8): e4

Authors:
Janaka Wijekoon, Rajitha Tennekoon, Erwin Harahap, Hiroaki Nishi

Downloads:
1372

Abstract:
In network research, network simulators have been shown to be useful for testing and changing network protocols by means of a controlled manner. As an Internet systems simulator, ns-3 simulator provides an ideal simulation environment for network research. However, ns-3 is lack of table-driven IPv4…In network research, network simulators have been shown to be useful for testing and changing network protocols by means of a controlled manner. As an Internet systems simulator, ns-3 simulator provides an ideal simulation environment for network research. However, ns-3 is lack of table-driven IPv4 routing modules. Despite the fact that a routing protocol is a mandatory component of a network, it is necessary to introduce a table-driven routing protocol for the ns-3 which is able to maintain the network connectivity and consistency. To this end, we introduce a distance vector IPv4 wired routing protocol for the ns-3 simulator (DVRP). The proposing protocol is developed as a table-driven wired routing protocol. In this study, we describe the proposing routing protocol, including its design, implementation, behavior on networks, and limitations.
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Simulating LTE Mobility Management in presence of coverage holes with ns-3
Appears in:
mca 16(8): e2

Authors:
Zoraze Ali, Nicola Baldo, Josep Mangues-Bafalluy, Lorenza Giupponi

Downloads:
1083

Abstract:
In this paper, we present our approach to simulate mobility management scenarios for LTE heterogeneous network deployments defined by challenging radio propagation scenarios, such as the presence of coverage holes. We focus on the LTE module of ns-3, which is also known as LENA. Our contribution i…In this paper, we present our approach to simulate mobility management scenarios for LTE heterogeneous network deployments defined by challenging radio propagation scenarios, such as the presence of coverage holes. We focus
on the LTE module of ns-3, which is also known as LENA. Our contribution is twofold. On one hand, we propose a set of new features for the LTE module, including a new model for simulating obstacles blocking the propagation of radio signals, and a handover model suitable for the offline
evaluation of mobility management solutions. On the other hand, we describe in detail the setup of the simulation scenario, highlighting the challenges that we faced during the implementation and discussing the chosen configuration parameters. Finally, we present some simulation results that
we obtained with the proposed approach.
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Route-Over Forwarding Techniques in a 6LoWPAN
Appears in:
mca 14(5): e5

Authors:
Andreas Weigel, Martin Ringwelski, Volker Turau, Andreas Timm-Giel

Downloads:
982

Abstract:
6LoWPAN plays a major role within the protocol stack for the future Internet of Things. Its fragmentation mechanism enables transport of IPv6 datagrams with the required minimum MTU of 1280 bytes over 802.15.4-based networks. With the goal of a fully standardized WSN protocol stack currently nece…6LoWPAN plays a major role within the protocol stack for the future Internet of Things. Its fragmentation
mechanism enables transport of IPv6 datagrams with the required minimum MTU of 1280 bytes over
802.15.4-based networks. With the goal of a fully standardized WSN protocol stack currently necessitating a route-over approach, i.e., routing at the IP-layer, there are two main choices for any 6LoWPAN implementation with regard to datagram fragmentation: Hop-by-hop assembly or a cross-layered direct mode, which forwards individual 6LoWPAN fragments before the whole datagram has arrived. In addition to these two straightforward approaches, we propose enhancements based on adaptive rate-restriction for the direct forwarding and a retry control for both modes to reduce the number of losses of larger datagrams. An evaluation of these modes in a simulation environment and a hardware testbed indicate that the proposed enhancements can considerably improve PRR and latency within 6LoWPAN networks.
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Towards autonomous vehicular clouds
Appears in:
mca 11(1): e2

Authors:
Stephan Olariu, Mohamed Eltoweissy, Mohamed Younis

Downloads:
751

Abstract:
The dawn of the 21st century has seen a growing interest in vehicular networking and its myriad potential applications. The initial view of practitioners and researchers was that radio-equipped vehicles could keep the drivers informed about potential safety risks and increase their awareness of roa…The dawn of the 21st century has seen a growing interest in vehicular networking and its myriad potential applications. The initial view of practitioners and researchers was that radio-equipped vehicles could keep the drivers informed about potential safety risks and increase their awareness of road conditions. The view then expanded to include access to the Internet and associated services. This position paper proposes and promotes a novel and more comprehensive vision namely, that advances in vehicular networks, embedded devices and cloud computing will enable the formation of autonomous clouds of vehicular computing, communication, sensing, power and physical resources. Hence, we coin the term, autonomous vehicular clouds (AVCs). A key feature distinguishing AVCs from conventional cloud computing is that mobile AVC resources can be pooled dynamically to serve authorized users and to enable autonomy in real-time service sharing and management on terrestrial, aerial, or aquatic pathways or theaters of operations. In addition to general-purpose AVCs, we also envision the emergence of specialized AVCs such as mobile analytics laboratories. Furthermore, we envision that the integration of AVCs with ubiquitous smart infrastructures including intelligent transportation systems, smart cities and smart electric power grids will have an enormous societal impact enabling ubiquitous utility cyber-physical services at the right place, right time and with right-sized resources.
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Hybrid Satellite - Wireless Sensor Networks Architecture for Telemedicine Applications in the Context of Emergency Satellite Communications in Ku/Ka/Q/V Bands
Appears in:
mca 14(5): e1

Authors:
Rahim Kacimi, Ponia Pech

Downloads:
671

Abstract:
Thanks to the facilities offered by telecommunications, telemedicine today allows physicians and clinicians to access, monitor and diagnose patients remotely. Telemedicine includes several applications such as remote monitoring of chronically ill patients, monitoring people in their everyday lives …Thanks to the facilities offered by telecommunications, telemedicine today allows physicians and clinicians to access, monitor and diagnose patients remotely. Telemedicine includes several applications such as remote monitoring of chronically ill patients, monitoring people in their everyday lives to provide early detection and intervention for various types of diseases, computer-assisted physical rehabilitation in ambulatory settings, and assisted living for the elderly at home, as well as remote monitoring of injured people in a post-disaster situation. These new applications require a reliable, wireless communication link between the devices implanted in the patient’s skin and a clinician. In this article, this issue is discussed and a list of performance criteria for the different communication links used are addressed, especially focusing on the satellite link. Then an adaptive air interface which is designed to meet the performance constraints of bidirectional satellite communication links in an emergency situation in Ku/Ka/Q/V bands where when strong channel impairments occur is described and analysed.
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A Privacy-Preserving NFC Mobile Pass for Transport Systems
Appears in:
mca 14(5): e4

Authors:
Ghada Arfaoui, Guillaume Dabosville, Sébastien Gambs, Patrick Lacharme, Jean-François Lalande

Downloads:
605

Abstract:
The emergence of the NFC (Near Field Communication) technology brings new capacities to the next generation of smartphones, but also new security and privacy challenges. Indeed through its contactless interactions with external entities, the smartphone of an individual will become an essential auth…The emergence of the NFC (Near Field Communication) technology brings new capacities to the next generation of smartphones, but also new security and privacy challenges. Indeed through its contactless interactions with external entities, the smartphone of an individual will become an essential authentication tool for service providers such as transport operators. However, from the point of view of the user, carrying a part of the service through his smartphone could be a threat for his privacy. Indeed, an external attacker or the service provider himself could be tempted to track the actions of the user. In this paper, we propose a privacy-preserving contactless mobile service, in which a user’s identity cannot be linked to his actions when using the transport system. The security of our proposition relies on the combination of a secure element in
the smartphone and on a privacy-enhancing cryptographic protocol based on a variant of group signatures. In addition, although a user should remain anonymous and his actions unlinkable in his daily journeys, we designed a technique for lifting his anonymity in extreme circumstances. In order to guarantee the usability of our solution, we implemented a prototype demonstrating that our solution meets the major functional requirements for real transport systems: namely that the mobile pass can be validated at a gate in less than 300 ms, and this even if the battery of the smartphone is exhausted.
more »
Multi-Service Group Key Management for High Speed Wireless Mobile Multicast Networks
Appears in:
mca 15(6): e4

Authors:
Trust T. Mapoka, Simon J. Shepherd, Yousef A.S Dama, Haider M. Al Sabbagh, Raed A. Abd-Alhameed

Downloads:
560

Abstract:
Recently there is a high demand from the Internet Service Providers to transmit multimedia services over high speed wireless networks. These networks are characterized by high mobility receivers which perform frequent handoffs across homogenous and heterogeneous access networks while maintaining se…Recently there is a high demand from the Internet Service Providers to transmit multimedia services over high speed wireless networks. These networks are characterized by high mobility receivers which perform frequent handoffs across homogenous and heterogeneous access networks while maintaining seamless connectivity to the multimedia services. In order to ensure secure delivery of multimedia services to legitimate group members, the conventional cluster based group key management (GKM) schemes for securing group communication over wireless mobile multicast networks have been proposed. However, they lack efficiency in rekeying the group key in the presence of high mobility users which concurrently subscribe to multiple multicast services that co-exist in the same network. This paper proposes an efficient multi-service group key management scheme (SMGKM) suitable for high mobility users which perform frequent handoffs while participating seamlessly in multiple multicast services. The users are expected to drop subscriptions after multiple cluster visits hence inducing huge key management overhead due to rekeying the previously visited cluster keys. The already proposed multi-service SMGKM system with completely decentralised authentication and key management functions is adopted to meet the demands for high mobility environment with the same level of security. Through comparisons with existing GKM schemes and simulations, SMGKM shows resource economy in terms of reduced communication and less storage overheads in a high speed environment with multiple visits.
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Africa: cyber-security and its mutual impacts with computerisation, miniaturisation and location-based authentication
Appears in:
mca 17(11): e4

Authors:
M.I. Adeka, K.O.O. Anoh, M. Ngala, S.J. Shepherd, E. Ibrahim, I.T.E. Elfergani, A.S. Hussaini, J. Rodriguez, R.A. Abd-Alhameed

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524

Abstract:
The state of insecurity occasioned by fraudulent practices in Africa has been of concern economically, both at home and abroad. In this paper, we propose ways to mitigate this problem, using Nigeria as a case study. Based on surveys in West Africa, the paper examines the security situation in the c…The state of insecurity occasioned by fraudulent practices in Africa has been of concern economically, both at home and abroad. In this paper, we propose ways to mitigate this problem, using Nigeria as a case study. Based on surveys in West Africa, the paper examines the security situation in the continent and its mutual impacts with computerisation, miniaturisation and Location-Based Authentication (LBA). It was discovered that computerisation and miniaturisation had negative effects on cyber-security, as these were being exploited by fraudsters, using advance fee fraud; called 419. As a countermeasure, the paper examines the possibility of using LBA and digitisation of the GSM Mobile country codes down to city/area codes along with GSM/GPS authentications. These could also be combined with the use of a web-based Secret Sharing Scheme for services with very high security demands. The challenges of roaming were also examined and considered to be of negligible impact.
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A Unified NET-MAC-PHY Cross-layer Framework for Performance Evaluation of Multi-hop Ad hoc WLANs
Appears in:
mca 14(4): e6

Authors:
Rachid El-Azouzi, Essaid Sabir, Mohammed Raiss-El-Fenni, Sujit Kumar Samanta

Downloads:
516

Abstract:
Most of the existing works have been evaluated the performance of 802.11 multihop networks by considering the MAC layer or network layer separately. Knowing the nature of the multi-hop ad hoc networks, many factors in different layers are crucial for study the performance of MANET. In this paper we…Most of the existing works have been evaluated the performance of 802.11 multihop networks by considering the MAC layer or network layer separately. Knowing the nature of the multi-hop ad hoc networks, many factors in different layers are crucial for study the performance of MANET. In this paper we present a new analytic model for evaluating average end-to-end throughput in IEEE 802.11e multihop wireless networks. In particular, we investigate an intricate interaction among PHY, MAC and Network layers. For instance, we incorporate carrier sense threshold, transmission power, contention window size, retransmissions retry limit, multi rates, routing protocols and network topology together. We build a general cross-layered framework
to represent multi-hop ad hoc networks with asymmetric topology and asymmetric traffic. We develop an analytical model to predict throughput of each connection as well as stability of forwarding queues at intermediate nodes in saturated networks. To the best of our knowledge, it seems that our work is the first wherein general topology and asymmetric parameters setup are considered in PHY/MAC/Network layers. Performance of such a system is also evaluated through simulation. We show that performance measures of the MAC layer are affected by the traffic intensity of flows to be forwarded. More precisely, attempt rate and collision probability are dependent on traffic flows, topology and routing.
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Publisher: EAI
ISSN: 2032-9504
Number of Volumes: 5

Last Published: 31st Jan 2019

EAI Endorsed Transactions on Mobile Communications and Applications

Honggang Wang1

Dapeng Wu2

Honggang Wang¹

Dapeng Wu²