EAI Endorsed Transactions on Mobile Communications and Applications

An open access journal abstracted/indexed in DOAJ, DBLP, CrossRef, and WorldCat. It focuses on all aspects of mobile communications theories, technologies, systems, and applications, with no publishing fees.

Editor(s)-in-Chief: Honggang Wang

Scope
Topics
Editor in Chief
Editorial Board
Special Issues

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

Special Issue Editor: Dr. Jorge de Jesus Lozoya Santos

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. Shiwen Mao (Department of Electrical and Computer Engineering, Auburn 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 Wang

Dr. Honggang Wang is a tenured associate professor at UMass Dartmouth and is an affiliated faculty member of Advanced Telecommunications Engineering Laboratory at Universoty 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).

Recently Published
Most Popular

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.
more »
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.
more »
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.
more »
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.
more »
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.
more »
LDPC encoding performances for fading suppression in MIMO-CDMA wireless networks
Appears in:
mca 18(14): e1

Authors:
Ioana Marcu, Carmen Voicu, Simona V. Halunga, Radu Preda

Published:
11th Jul 2018

Abstract:
In multiuser wireless communication systems, signal recovery, even at low BER is a relevant factor for ensuring a safe and reliable communication. Efforts for interference minimization include multiple analysis of source coding/decoding techniques, channel coding/decoding techniques and multiuser d…In multiuser wireless communication systems, signal recovery, even at low BER is a relevant factor for ensuring a safe and reliable communication. Efforts for interference minimization include multiple analysis of source coding/decoding techniques, channel coding/decoding techniques and multiuser detection algorithms. This paper illustrates the improvement brought by LDPC technique in SS systems when AWGN and Rayleigh/Nakagami-m fading occur on communication channel. Performances are evaluated for different sets of spreading sequences (Walsh-Hadamard, Kasami and PN) and based on the simulation results several conclusions are highlighted and further improvement will be proposed for fading effects reduction and interference minimization.
more »
NPRA: Novel Policy Framework for Resource Allocation in 5G Software Defined Networks
Appears in:
mca 18(13): e6

Authors:
Sahrish Khan Tayyaba, Adnan Akhunzada, Noor Ul Amin, Munam Ali Shah, Faheem Khan, Ihsan Ali

Published:
22nd Mar 2018

Abstract:
In cellular networks, physical resources are always limited, especially when shared among different contributors such as mobile network operator (MNO) or mobile virtual network operators (MVNO) etc. Software Defined Network (SDN) and Network Function Virtualization (NFV) is a Current research area.…In cellular networks, physical resources are always limited, especially when shared among different contributors such as mobile network operator (MNO) or mobile virtual network operators (MVNO) etc. Software Defined Network (SDN) and Network Function Virtualization (NFV) is a Current research area. SDN-based cellular networks provide high Quality of Services (QoS) to the end-user and NFV provides isolation. The sharing of resources is often provided by leveraging virtualization. SDN can generate new forwarding rules and policies for dynamic routing decision based on the traffic classification. However, virtualization in cellular networks is still in infancy and many issues and challenges remain unaddressed. The queue-length problem for providing QoS is cellular network requires attention. The queue management requires separate management protocols for fair allocation of resources. In this research paper, we propose a novel framework for resource allocation and bandwidth management in the 5G cellular network. We are using two level of virtualization, i.e., implementing dynamic resource optimization at network slice manager and executing optimized policies at the wireless virtual manager.
more »
Expert System for Handling Congestion in Opportunistic Network
Appears in:
mca 18(13): e5

Authors:
Ahthasham Sajid, Khalid Hussain

Published:
22nd Mar 2018

Abstract:
Opportunistic networks are one of the most popular categories of mobile Adhoc networks. These types of networks usually have to deal with intermittent disconnected path from source to the destination most of the time therefor suffers from numerous key challenges for successful custody transfer to b…Opportunistic networks are one of the most popular categories of mobile Adhoc networks. These types of networks usually have to deal with intermittent disconnected path from source to the destination most of the time therefor suffers from numerous key challenges for successful custody transfer to be done between encounter nodes. There are numerous challenges faced due to such disconnectivity within the network but one of the key challenges is that which intermediate node will be selected as custody transfer and till how much time custodian node can carry messages as it will have storage constraints until a destination node is found. In this research study the same problem has been addressed via proposing a rule based expert system that will have better coordination among intermediate nodes for the transmission with less drop and better delivery ratio. Proposed technique has been tested and validated via ONE simulator and compared with MaxProp protocol.
more »
Comparative Analysis and Route Optimization of State of the Art Routing Protocols
Appears in:
mca 18(13): e4

Authors:
Inam Ullah Khan, Ijaz Mansoor Qureshi, Syed Bilal Hussain Shah, Muhammad Hamza Akhlaq, Alamgir Safi, Muhammad Asghar Khan, Engr. Anjum Nazir

Published:
22nd Mar 2018

Abstract:
Performance of any network is based on the routing protocols. RIP, Session, OSPF and BGP are the few commonly used dynamic routing protocols used in today’s networks. Routing refers to the phenomenon of selecting the best available path to forward packets to its destination. It is a core feature fo…Performance of any network is based on the routing protocols. RIP, Session, OSPF and BGP are the few commonly used dynamic routing protocols used in today’s networks. Routing refers to the phenomenon of selecting the best available path to forward packets to its destination. It is a core feature for any network because the performance of the networks heavily depends upon it. In this paper we will perform comparative analysis by using Distance Vector, Link State and Session routing protocol. We will study Packet drop rate (PDR), Bandwidth / Link Utilization, End to End Delay, throughput behavior of these protocols by using network simulator 2 (ns2) for route optimization & comparative analysis to find optimal routing protocol
more »
Determining Interdependencies among NFRs in Agile Environment to Reduce Conflicts
Appears in:
mca 18(13): e3

Authors:
Jawad Ali, Muhammad Shoaib Shoukat, Muhammad Faisal

Published:
22nd Mar 2018

Abstract:
NFRs play a very key role in the development of high quality software. As NFRs are quality attributes of the software system, so it must be dealt properly and with care in the early phases of software development otherwise it will lead the system to failure or dismissal of quality requirement at la…NFRs play a very key role in the development of high quality software. As NFRs are quality attributes of the software system, so it must be dealt properly and with care in the early phases of software development otherwise it will lead the system to failure or dismissal of quality requirement at later phases. NFRs have a very unique ability to conflict and contradict among themselves. And the main reason behind this ability of NFRs is interdependency, which should be found and dealt properly in order to avoid requirement dismissal. Agile methodologies only focus on functional requirements but neglects non-functional requirements. In this work, we identified and highlighted all the possible dependencies between different NFRs in agile environment. In addition we also proposed a specific framework to cope up with the identified dependencies between NFRs.
more »

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:
1614

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.
more »
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:
1117

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.
more »
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:
856

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.
more »
Route-Over Forwarding Techniques in a 6LoWPAN
Appears in:
mca 14(5): e5

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

Downloads:
657

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.
more »
Towards autonomous vehicular clouds
Appears in:
mca 11(1): e2

Authors:
Stephan Olariu, Mohamed Eltoweissy, Mohamed Younis

Downloads:
524

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.
more »
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:
478

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.
more »
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:
395

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 »
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:
380

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.
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:
377

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.
more »
The Prohibitive Link between Position-based Routing and Planarity
Appears in:
mca 13(3): e2

Authors:
David Cairns, Marwan Fayed, Hussein T. Mouftah

Downloads:
362

Abstract:
Position-based routing is touted as an ideal routing strategy for resource-constrained wireless networks. One persistent barrier to adoption is due to its recovery phase, where messages are forwarded according to leftor right-hand rule (LHR). This is often referred to as face-routing. In this paper…Position-based routing is touted as an ideal routing strategy for resource-constrained wireless networks. One persistent barrier to adoption is due to its recovery phase, where messages are forwarded according to leftor right-hand rule (LHR). This is often referred to as face-routing. In this paper we investigate the limits of LHR with respect to planarity.We show that the gap between non-planarity and successful delivery is a single link within a single configuration. Our work begins with an analysis to enumerate all node configurations that cause intersections in the unit-disc graph. We find that left-hand rule is able to recover from all but a single case, the ‘umbrella’ configuration so named for its appearance. We use this information to propose the Prohibitive Link Detection Protocol (PLDP) that can guarantee delivery over non-planar graphs using standard face-routing techniques. As the name implies, the protocol detects and circumvents the ‘bad’ links that hamper LHR. The goal of this work is to maintain routing guarantees while disturbing the network graph as little as possible. In doing so, a new starting point emerges from which to build rich distributed protocols in the spirit of CLDP and GDSTR.
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Publisher: EAI
ISSN: 2032-9504
Number of Volumes: 4

Last Published: 14th Dec 2018