EAI Endorsed Transactions on Mobile Communications and Applications

EAI Endorsed Transactions on Mobile Communications and Applications is an open access, peer-reviewed scholarly journal focused on all aspects of mobile communications theories, technologies, systems, and applications. The journal publishes research articles, review articles, commentaries, editorials, technical articles, and short communications with a triannual frequency. Authors are not charged for article submission and processing.

Editor(s)-in-Chief: Lin Yun, Vanlin Sathya, Vincent A. Cicirello and Arianna D'Ulizia

Aims & Scope
Indexing
Editorial Board
Special Issues

EAI Endorsed Transactions on Mobile Communications and Applications is an open-access, a peer-reviewed scholarly journal focused on all aspects of mobile communications theories, technologies, systems, and applications. The journal publishes research articles, review articles, commentaries, editorials, technical articles, and short communications with a triannual frequency. Authors are not charged for article submission and processing.

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
Self-organizing, self-aware, and self-adaptive networks
Mobility management
Modulation and coding techniques
Quality of service
Reliability and fault tolerance
Trust, security and privacy
Mobile applications and services
Performance modelling and analysis
Spectrum sensing algorithm and white space modeling
Spectrum sharing architecture and mechanism
Spectrum-efficient design
Dynamic spectrum management
Spectrum pricing, auction, and trading a
Game theory for dynamic spectrum access
Spectrum mobility control
Reconfigurable wireless platforms
Medium access control design for cognitive radio networks
Spectrum agile and adaptive routing
Security of wireless systems in the context of spectrum sharing
Interference analysis, measurements, and statistical models of spectrum usage
Information-theoretic aspects of next-generation mobile systems
Coexistence with legacy wireless systems
Novel radio architectures and antennas
Simulation tools, testbeds, hardware, and software prototypes
Regulation and standardization
Artificial intelligence and machine learning for mobile communications
Energy-efficiency design in mobile communication systems
Mobile big data analytics
Mobile communications for the Internet of Things (IoT)
Applications enabled by mobile communication systems

Call for Papers: Special issue on: Improving the Security and Privacy Policies through Artificial Intelligence for NextGen (6G) Mobile Networks (Manuscript submission deadline: 2021-09-30; Notification of acceptance: 2021-11-18; Submission of final revised paper: 2022-01-10; Publication of special issue (tentative): 2021-07-30)

Guest Editor: Dr Basim Alhadidi, PhD. Khalaf (Al-Balqa Applied University, Jordan) Guest Editor: Dr Hong Jer Lang (Taylor's University, Malaysia) Guest Editor: Dr A M Viswa Bharathy, M.E., Ph.D. (JNTUH University, India)

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
Dr. Ashutosh Kumar Dubey, Chitkara University, India
Brij Bhooshan Gupta, National Institute of Technology Kurukshetra, India
Dr. Anand Nayyar, Duy Tan University, Vietnam
Prof. Wen-Cheng Lai, National Penghu University of Science and Technology, Vietnam
Dr A M ViswaBharathy, Malla Reddy College of Engineering and Technology, India
Bo Li, Harbin Institute of Technology at Weihai, China
Klaus Moessner, University of Surrey, UK
Murat Kuscu, Koc University, Turkey
Xuanheng Li, Dalian University of Technology, China

Recently Published
Most Popular

Deep Non-Orthogonal Multiple Access Network Assisted by Intelligent Reflecting Surface
Appears in:
mca 23(3): e4

Authors:
Dahua Ouyang, Pingzhi Shangguan, Xinyong Huangfu, Zenggang Linghu, Haiyang Zhuge, Haoliang Situ, Shangwu Sima, Junning Shentu, Yuanrui Xiahou, Zhengtao Helan, Zhaoyao Dongfang, Kunlun Dongfang, Zhengzhi Wanyan, Qingrong Murong, Hanming Yuchi, Zhongchun Zhangsun, Bingyun Helan, Haida Xiahou, Yifan Shentu, Weiye Sima, Zhengfeng Situ, Fengqi Zhuge, Jiayi Linghu, Zhili Huangpu, Weiyi Shangguan, Shanshan Ouyang, Xiatian Ouyang, Zhimo Shangguan, Dechang Huangpu, Bozhong Linghu, Houjue Zhuge, Yunfei Situ, Bobo Sima, Zelong Shentu, Kunlun Xiahou, Zhaohui Helan, Siyu Wanyan, Desheng Murong, Yingxiong Yunchi, Baoqiang Zhangsun, Jinshang Dongfang, Xiazhi Lai, Yinghao Guo, Bowen Lu

Published:
11th Dec 2023

Abstract:
The intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) symbiotic communication technology is expected to enhance the access performance, energy efficiency and spectrum efficiency of the communication network, and is regarded as an important candidate technology to s…The intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) symbiotic communication technology is expected to enhance the access performance, energy efficiency and spectrum efficiency of the communication network, and is regarded as an important candidate technology to support the evolution of the sixth-generation (6G) towards large-scale, high-capacity and sustainable development. However, the relevant research of this technology is still at the initial stage, and many key challenges have not been fully studied. Therefore, it is urgent to open up relevant research ideas and methods to promote its development and early implementation, so as to make it an effective 6G technology. In view of this, this paper intends to carry out the research on the theory and method of IRS assisted NOMA symbiotic transmission, starting from the analysis of the active and passive symbiotic mechanism of NOMA transmission protocol. Based on this, we further study the efficient symbiotic modulation transmission technology and multi-dimensional resource optimization allocation method. The research content of this paper is to explore the transmission theory and technology of high energy efficiency and high frequency spectrum efficiency for 6G, and break through the bottleneck problem of spectrum and energy consumption encountered by wireless communication, which has important practical significance for the wireless communication.
more »
Distributed Joint Channel Assignment and Power Control for Sum Rate Maximization of D2D-Enabled Massive MIMO System
Appears in:
mca 23(3): e1

Authors:
Abi Abate Dejen, Anna Förster , Yihenew Wondie

Published:
12th Jan 2023

Abstract:
Device-to-device (D2D) communications underlaid massive multiple-input multiple-output (MIMO) systems have been recognized as a promising candidate technology to achieve the challenging fifth-generation (5G) network requirements. This integration enhances network throughput, improves spectral effic…Device-to-device (D2D) communications underlaid massive multiple-input multiple-output (MIMO) systems have been recognized as a promising candidate technology to achieve the challenging fifth-generation (5G) network requirements. This integration enhances network throughput, improves spectral efficiency, and offloads the traffic load of base stations. However, the co/cross-tier interferences between cellular and D2D communications caused by resource sharing is a significant challenge, especially when dense D2D users exist in an underlay mode. In this paper, we jointly optimize the channel assignment and power allocation to maximize the sum data rate while maintaining the interference constraints of cellular links. Due to the lack of network-wide information in large scale networks, resource management and interference coordination is hard to be implemented in a centralized way. Therefore, we propose a three-stage stable and distributed resource allocation and interference management scheme based on local information and requires little coordination and communication between devices. We model the channel allocation optimization problem in the first stage as a many-to-one matching game. In the second stage, the algorithm adopts a cost charging policy to solve each user’s power control problem as a non-cooperative game. In the third stage, the algorithm search for swap blocking pairs until stable matching exist. It is shown in this paper that the proposed algorithm converges to a stable matching and terminates after finite iterations. Simulation results show that the proposed algorithm can achieve more than 86% of the average transmission rate performance of the optimal matching with lower complexity.
more »
Deep Model Training and Deployment in Heterogeneous IoT Networks
Appears in:
mca 23(3): e5

Authors:
Bowen Lu, Shiwei Lai, Yajuan Tang, Tao Cui, Chengyuan Fan, Jianghong Ou, Dahua Fan

Published:
11th Jan 2023

Abstract:
As a typical form of machines learning, deep learning has attracted much attention from researchers. It can independently construct (train) basic rules according to the sample data in the learning process. Especially in the field of machine vision, neural networks are usually trained by supervised …As a typical form of machines learning, deep learning has attracted much attention from researchers. It can independently construct (train) basic rules according to the sample data in the learning process. Especially in the field of machine vision, neural networks are usually trained by supervised learning, that is, by example data and predefined results of example data. In this paper, we firstly overview the current research progress on the deep model training and deployment on the heterogeneous Internet of Things (IoT) networks, by taking into account both the latency and energy consumption from various devices in the system. We then summarize the existing challenges on the model training and model deployment on the heterogeneous IoT devices. We further give some feasible solutions to solve the challenges on the model training and model deployment on the heterogeneous IoT devices. The study in this paper can serve as an important reference for the development of deep model training and model deployment for heterogeneous IoT networks.
more »
Formation control of multiple unmanned vehicles based on graph theory: A Comprehensive Review
Appears in:
mca 23(3): e3

Authors:
Hai Do, Hoa Nguyen, Cuong Nguyen, Mui Nguyen, Minh Nguyen

Published:
20th Dec 2022

Abstract:
In recent years, formation control for multiple unmanned vehicles becomes an active research topic that has received a lot of attention from scientists due to its superior advantages compared with other conventional systems. Algebraic graph and graph rigidity theories are the two main mathematical …In recent years, formation control for multiple unmanned vehicles becomes an active research topic that has received a lot of attention from scientists due to its superior advantages compared with other conventional systems. Algebraic graph and graph rigidity theories are the two main mathematical backgrounds of the formation control theory. The graph theory is used to describe the interconnections among vehicles in formation while rigid graph theory - an important subset of graph theory - ensured that the inter-vehicle distance constraints of the desired formation are enforced via the graph rigidity. This paper provides a comprehensive review of graph theory supporting formation control for groups of unmanned aerial vehicles (UAV) or swarm UAVs. The background of the theory and the recent developments of graph-theory-based formation control are reviewed. We provide a cohesive overview of the formation control and coordination of multiple vehicles. Finally, some challenges and future potential directions in formation control are discussed.
more »
Collaborative Relay Radio Network Using Reconfigurable Intelligent Surface
Appears in:
mca 23(3): e2

Authors:
Huu Q. Tran, Nguyen Trong Duy, Huynh Phan Hieu Nghia

Published:
21st Sep 2022

Abstract:
In this paper, we have studied a model of a relay radio network system using Reconfigurable Intelligent Surface (RIS). Specifically, we used a relay network that uses RIS when there is an extra direct link from the Source (S) to the Destination (D). Next, an approximate closed-form expressions of t…In this paper, we have studied a model of a relay radio network system using Reconfigurable Intelligent Surface (RIS). Specifically, we used a relay network that uses RIS when there is an extra direct link from the Source (S) to the Destination (D). Next, an approximate closed-form expressions of the Outage Probability (OP) and Ergodic Capacity (EC) are considered. Based on the simulation results of OP and EC, the results show that our proposed system is more optimal than the system using supported RIS without direct link and the system without using RIS. In addition, changing the number of the RIS reflecting elements and the RIS’s location near (S) or (D) has a significant impact on the performance of the system. The analytical expression match the simulation results through the Monte Carlo simulation method. Furthermore, the simulation results of energy efficiency (EE) also show that when the target spectral efficiency (SE), Rth, is high (more than 5.45 b/s/Hz), the system using supported RIS with direct link will help reduce the transmit power and optimize the most energy compared to the other two systems.
more »
The similarity between Disease and Drug Network in Link Prediction
Appears in:
mca 22(2): e5

Authors:
Muhammad Azam, Muhammad Nouman

Published:
5th Sep 2022

Abstract:
Nowadays, data records are being transferred entirely to digital platforms, and data have become embodied and measurable. In this study, to observe the relationship between disease and drug, we first constructed disease and drug networks. These networks consist of a disease diagnosis and drugs writ…Nowadays, data records are being transferred entirely to digital platforms, and data have become embodied and measurable. In this study, to observe the relationship between disease and drug, we first constructed disease and drug networks. These networks consist of a disease diagnosis and drugs written by doctors. After the disease and drug networks were generated, a link prediction was done concerning similarity values between nodes. Experimental results show that the proposed method finds satisfactory results. By examining these constructions and connections it is feasible to achieve affinities, similitudes, and patterns and it is likewise conceivable to make it feasible to achieve.
more »
Energy-efficient and high-spectrum-efficiency wireless transmission
Appears in:
mca 22(2): e4

Authors:
Yajuan Tang, Shiwei Lai, Zichao Zhao, Yanyi Rao, Wen Zhou, Fusheng Zhu, Liming Chen, Dan Deng, Jing Wang, Tao Cui, Yuwei Zhang, Jun Liu, Di Wu, Zhusong Liu, Huang Huang, Xuan Zhou, Zhao Wang, Chao Li, Kai Chen, Wei Zhou, Yun Li, Kaimeno Dube, Abbarbas Muazu, Nakilavai Rono, Sunli Feng, Jiayin Qin, Haige Xiang, Zhigang Cao, Lieguang Zeng, Zhixing Yang

Published:
5th Sep 2022

Abstract:
With the deployment and commercialization of the fifth-generation (5G) mobile communication networks, the access nodes and data volume of wireless networks are showing massive and explosive growth. In this paper, we firstly review the research progress on the energy-efficient and spectrum-efficient…With the deployment and commercialization of the fifth-generation (5G) mobile communication networks, the access nodes and data volume of wireless networks are showing massive and explosive growth. In this paper, we firstly review the research progress on the energy-efficient and spectrum-efficient wireless transmission, from the perspectives of both latency and energy consumption. We then provide several solutions to high-efficiency wireless transmission for the 5G wireless networks. Finally, we give some discussions about the future road for the design of energy-efficient and spectrum-efficient wireless transmission, which provides some theoretical reference for the system design of wireless networks and Internet of Things (IoT) networks.
more »
A Comparative Analysis of the various Power Allocation Algorithm in NOMA-MIMO Network Using DNN and DLS Algorithm
Appears in:
mca 22(2): e3

Authors:
Ravi Mancharla, Yaka Bulo

Published:
31st Aug 2022

Abstract:
The high data rate, huge spectrum efficiency, successive interference cancellation (SIC), and ultra-reliable low latency (URLL) are of the demand for next-generation technologies. Non-orthogonal multiple access (NOMA) scheme provides multi-user scaling (multiplexing), optimum spectral efficiency (S…The high data rate, huge spectrum efficiency, successive interference cancellation (SIC), and ultra-reliable low latency (URLL) are of the demand for next-generation technologies. Non-orthogonal multiple access (NOMA) scheme provides multi-user scaling (multiplexing), optimum spectral efficiency (SE), excellent user-pairing improvement, and a single resource block sharing by multiple users because of which it is a more preferable scheme over orthogonal multiple access (OMA) for the next generation technologies. This article investigates comparative analysis of various power allocation algorithms in multiple-input multiple-output-NOMA (MIMO-NOMA) technology and to come up with the best power allocation algorithm which suited best for MIMO-NOMA technology. Firstly, comparison analysis will be carried out considering direct methodologies followed by power allocation algorithm using Deep Neural Network (DNN) along with the Depth limited search (DLS) algorithm. These techniques are tested on two users initially then followed by multi-user communication. Allocating optimal power to the poor signal strength user terminal (user not receiving appropriate signal power) is a difficult task in actual scenario, and moreover, SIC also creates complexity in the proper allocation of Base station (BS) source power. The above problems can be solved with the assistance of the DNN along with the DLS algorithm, where the weaker user receives maximum power and the stronger user receives minimum power. The DNN-MIMO-NOMA technology, which is based on the DLS algorithm, helps user terminals to get their signals free from noise (inter_user_interference) and with greater precision. The DLS process (algorithm) offers higher potential in MIMO-NOMA with DNN technology for successfully applying SIC. Here, MIMO helps to improve the channel gain. A DLS provides an optimum power allocation (OPA) based on the position of user equipment. The simulation results show that the power allocation method using DNN along with DLS algorithm achieves better performance than the traditional multi-user.
more »
Intelligent Distributed Data Storage for Wireless Communications in B5G Networks
Appears in:
mca 22(2): e2

Authors:
Yajuan Tang, Shiwei Lai, Yanyi Rao, Wen Zhou, Fusheng Zhu, Liming Chen, Dan Deng, Jing Wang, Tao Cui, Yuwei Zhang, Jun Liu, Di Wu, Zhusong Liu, Huang Huang, Xuan Zhou, Zhao Wang, Zichao Zhao, Chao Li, Kai Chen, Wei Zhou, Yun Li, Kaimeno Dube, Abbarbas Muazu, Nakilavai Rono, Sunli Feng, Jiayin Qin, Haige Xiang, Zhigang Cao, Lieguang Zeng, Zhixing Yang

Published:
25th Aug 2022

Abstract:
With the deployment and commercialization of the fifth-generation (5G) mobile communication network, the access nodes and data volume of wireless network show a massive and blowout growth trend. Taking beyond 5G (B5G) edge intelligent network as the research object, based on the deep integration of…With the deployment and commercialization of the fifth-generation (5G) mobile communication network, the access nodes and data volume of wireless network show a massive and blowout growth trend. Taking beyond 5G (B5G) edge intelligent network as the research object, based on the deep integration of storage / computing and communication, this paper focuses on the theory and key technology of system intelligent transmission, so as to effectively support the related applications of B5G edge intelligent network in the future. This paper analyzes the research status of data storage, studies the real field distributed storage computing system, and designs the corresponding flashback shift code and error correction scheme with low storage space overhead.
more »
Influence of Internet of things on human psychology (internet of thoughts) for education, healthcare, and businesses
Appears in:
mca 22(2): e1

Authors:
Pascal Muam Mah, Iwona Skalna, Eric Munyeshuri, John Akoko

Published:
25th Aug 2022

Abstract:
INTRODUCTION: The study investigated how technological innovations and Embedded Systems, processes, and Communication tools influence human psychology. The IoTs have succeeded to connect humans with things, and it is now preoccupied with understanding how humans react to these things by influencing…INTRODUCTION: The study investigated how technological innovations and Embedded Systems, processes, and Communication tools influence human psychology. The IoTs have succeeded to connect humans with things, and it is now preoccupied with understanding how humans react to these things by influencing our actions, reactions, and behavior.
OBJECTIVES: To identify items that IoTs use to influence human psychology in education, healthcare, and business and to find out how IoTs utilize AI, ML, Cloud computing, NLP, ICT tools, and big data technology to overpower human psychology.
METHODS: The methods “Behavior-oriented drive and influential function method” and the qualitative-quantitative method were used. The qualitative-quantitative method makes use of 3 research questions while behavior-oriented drive and influential function focus on statistical data.
RESULTS: The result indicates the least score of 12 out of 15 grades for all the measurements on a behavior-oriented drive and influential function and above 90% positive respondents for the qualitative-quantitative method.
CONCLUSION: The study concluded that the high dependency of humans on IoTs services is the reason for the IoTs influence on our thoughts, actions, and behavior.
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:
3462

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 »
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:
2973

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

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

Downloads:
2280

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 »
Implementation of Cognitive Radio Network Testbed for Multimedia Communications
Appears in:
mca 18(15): e2

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

Downloads:
1909

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 »
Automated control signal reception acknowledgement system using nRF24L01P wireless transceiver module and Arduino
Appears in:
mca 19(16): e3

Author:
Mobasshir Mahbub

Downloads:
1883

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.
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

Downloads:
1735

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 »
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:
1701

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 »
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:
1448

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

Authors:
Stephan Olariu, Mohamed Eltoweissy, Mohamed Younis

Downloads:
1415

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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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

Downloads:
1409

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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Publisher: EAI
ISSN: 2032-9504
Number of Volumes: 7

Last Published: 2023-01-11