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On selecting transmission mode for d2d transmitter in underlay cellular network with a multi-antenna base station

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digital Communications and Networks 2022年第2期8卷 194-207页

作者： Wiroonsak Santipach Kaemmatat Jiravanstit department of Electrical Engineering Faculty of EngineeringKasetsart UniversityBangkok10900Thailand

The device-to-device(d2d)communication underlaying cellular networks is considered in this *** d2d transmitter in the d2d mode can directly transmit messages to a receiver,but it may interfere with the transmission of another cellular user who shares the same uplink *** transmitter can also operate in a cellular mode in which no interference to another cellular user *** propose a mode selection scheme that aims to minimize the transmission power of the d2d transmitter subject to constraints on the minimum required data rate and maximum interference to other cellular *** proposed scheme is based on bounds for transmission power and is less complex than the optimal ***,it requires only a few statistics and does not need a fading channel *** performance of the scheme is close to optimum when the number of Base Station(BS)antennas is large,and the mean absolute deviation of the fading terms is *** verify this with numerical results of the Rician and Rayleigh fading channels by assuming that the BS antennas are *** simulation results for the two correlated BS antennas are presented herein.

关键词： d2d Transmission mode Cellular underlaying Multi-antenna base station Transmission power

Research on d2d Co-localization Algorithm Based on Clustering Filtering

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China Communications 2020年第8期17卷 121-132页

作者： Jiawen Zhang Fuxing Yang Zhongliang deng Xiao Fu Jiazhi Han School of Automation Beijing University of Posts and TelecommunicationsBeijing 100876China School of Electronic Engineering Beijing University of Posts and TelecommunicationsBeijing 100876China

Nowadays, most positioning systems carry out locational calculation based on the accurate location information of some devices in the network. However there is a deviation in the locational information of the part of the device, we need to reduce it in order to obtain higher positioning accuracy. In this paper, we proposed a new centralized d2d(device-to-device) co-location algorithm. This algorithm uses dBSACN(density-Based Spatial Clustering of Applications with Noise) clustering to reduce the deviation of device location information. Numerical results show that the positioning accuracy of the centralized d2d co-localization algorithm is improved by 62.7% compared with the SPAWN algorithm, which positioning performance superior to the traditional co-localization algorithm.

关键词： co-location d2d clustering dBSACN

Resource allocation for NOMA based d2d underlaid cellular networks

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The Journal of China Universities of Posts and Telecommunications 2019年第6期26卷 20-29页

作者： Chi Linman Zhu Qi Jiangsu Key Lab of Wireless Communications Nanjing University of Posts and TelecommunicationsNanjing 210003China Engineering Research Center of Health Service System Based on Ubiquitous Wireless Networks Nanjing University of Posts and TelecommunicationsMinistry of EducationNanjing 210003China

This paper puts forward a user clustering and power allocation algorithm for non-orthogonal multiple access(NOMA) based device-to-device(d2 d) cellular system. Firstly, an optimization problem aimed at maximizing the sum-rate of the system is constructed. Since the optimization problem is a mixed-integer non-convex optimization, it is decomposed into two subproblems, namely user clustering and power allocation subproblem. In the subproblem of user clustering, the clustering algorithms of cellular user and d2 d pair are proposed respectively. In the power allocation subproblem, the gradient assisted binary search(GABS) algorithm and logarithmic approximation in successive convex approximation(SCA) are used to optimize the power of subchannel(SC) and d2 d transmitted power respectively. Finally, an efficient joint iterative algorithm is proposed for the original mixed inter non-convex non-deterministic polynomial(NP)-hard problem. The simulation results show that the proposed algorithm can effectively improve the total system rate and the larger the ratio of cellular users(CUs) to total users, the larger the total system rate.

关键词： NOMA d2d communication user clustering SCA logarithmic approximation

Interference Mitigation in d2d Communication Underlying Cellular Networks:Towards Green Energy

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Computers, Materials & Continua 2021年第7期68卷 45-58页

作者： Rana Zeeshan Ahamad Abdul Rehman Javed Shakir Mehmood Mohammad Zubair Khan Abdulfattah Noorwali Muhammad Rizwan department of Computer Science Xian Jiaotong UniversityXi’anChina department of Cyber Security Air UniversityIslamabadPakistan department of Information and Technology Northwest UniversityXianChina department of Computer Science College of Computer Science and EngineeringTaibah UniversityMadinahSaudi Arabia department of Electrical Engineering Umm Al-Qura UniversityMakkahSaudi Arabia department of Computer Science Kinnaird College for WomenLahore54000Pakistan

device to device(d2d)communication is emerging as a new participant promising technology in 5G cellular networks to promote green energy networks.d2d communication can improve communication delays,spectral efficiency,system capacity,data off-loading,and many other fruitful scenarios where d2d can be ***,induction of d2d communication in reuse mode with the conventional cellular network can cause severe interference issues,which can significantly degrade network *** reap all the benefits of induction of d2d communication with conventional cellular communication,it is imperative to minimize interference’s detrimental *** power control can minimize the negative effects of interference and get benefits promised by d2d *** this work,we propose two power control schemes,Power Control Scheme 1(PCS 1)and Power Control Scheme 2(PCS 2),to minimize the interference and provide performance *** results observe improvements with PCS 1 and PCS 2 as compared to without using any power control scheme in terms of data rate in both uplink and downlink communication modes of Cellular User Equipment(CUE).

关键词： Interference mitigation green IoT green networks d2d power control spectral efficiency reuse mode

Interference Coordination for Fd-MIMO Cellular Network with d2d Communications Underlaying

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China Communications 2018年第12期15卷 75-88页

作者： Xiao Li Nana Qin Tingting Sun National Mobile Communications Research Laboratory Southeast University

In this paper, we investigate the interference coordination for downlink full-dimension multiple-input multiple-output(Fd-MIMO) systems with device-to-device(d2 d) communications underlaying. With three-dimensional(3 d) beamforming transmission applied for cellular users(CUEs), an approximation of the interference to signal ratio for CUEs is derived, and a coordination strategy is proposed to mitigate the interference from d2 d pairs to CUEs. Based on the lower bound of the interference to signal ratio for d2 d pairs, we propose coordination strategies for d2 d pairs to mitigate the interference caused by base station(BS) and the interference between d2 d pairs. The proposed strategies require only some statistical channel state information(CSI) of each user and the reduced-dimensional effective CSI of a few CUEs and d2 d pairs. Simulation results show that the proposed coordination strategy performs well in terms of achieving good tradeoff between the achievable rate of CUEs and d2 d pairs.

关键词： d2d Fd-MIMO 3d beamforming interference coordination

Capacity Analysis and Sum Rate Maximization for the SCMA Cellular Network Coexisting with d2d Communications

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China Communications 2022年第10期19卷 55-68页

作者： Yukai Liu Wen Chen Shanghai Institute of Advanced Communications and data Sciences Department of Electronic EngineeringShanghai Jiao Tong UniversityShanghai 200240China

Sparse code multiple access (SCMA) is the most concerning scheme among non-orthogonal multiple access (NOMA) technologies for 5G wireless communication new interface. Another efficient technique in 5G aimed to improve spectral efficiency for local communications is device-to-device (d2d) communications. Therefore, we utilize the SCMA cellular network coexisting with d2d communications for the connection demand of the Internet of things (IOT), and improve the system sum rate performance of the hybrid network. We first derive the information-theoretic expression of the capacity for all users and find the capacity bound of cellular users based on the mutual interference between cellular users and d2d users. Then we consider the power optimization problem for the cellular users and d2d users jointly to maximize the system sum rate. To tackle the non-convex optimization problem, we propose a geometric programming (GP) based iterative power allocation algorithm. Simulation results demonstrate that the proposed algorithm converges fast and well improves the sum rate performance.

关键词： SCMA d2d cellular capacity geometric programming

Transmitter-Receiver Path Selection for Cell Range Extension Using Multi-Hop d2d

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Computers, Materials & Continua 2021年第8期68卷 2075-2093页

作者： Farah Akif Kiran Sultan Aqdas N.Malik Ijaz M.Qureshi Saba Mahmood department of Electrical Engineering International Islamic UniversityIslamabad44000Pakistan department of CIT FASKing Abdulaziz UniversityJeddah21551Saudi Arabia department of Electrical Engineering Air UniversityIslamabad44000Pakistan department of Computer Science Bahria UniversityIslamabad44000Pakistan

Conventional approach of dealing with more users per coverage area in cellular networks implies densifying the amount of(Access Point)AP which will eventually result in a larger carbon *** this paper,we propose a base station off-loading and cell range extension(CRE)scheme based on multi-hop device-to-device(MHd2d)path selection between transmitter and receiver *** paper also provides derivations of upper and lower bounds for energy efficiency,capacity,and transmit *** proposed path selection scheme is inspired by the foraging behavior of honey *** present the algorithm as a modified variant of the artificial bee colony algorithm(MVABC).The proposed optimization problem is modeled as a minimization problem where we optimize the Energy Efficiency(EE).The proposed path selection MVABC is compared with the Genetic Algorithm(GA)and also with classical artificial bee colony(ABC)through simulations and statistical *** student’s t-test,p-value,and standard error of means(SEM)clearly show that MVABC based path selection out-performs the GA and classical ABC *** based approach is 66%more efficient when compared with classic ABC and about 62%efficient when compared with GA based scheme.

关键词： Multi-hop ultra-dense d2d path-selection ABC GA

Multi-Stage Hierarchical Channel Allocation in UAV-Assisted d2d Networks:A Stackelberg Game Approach

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China Communications 2021年第2期18卷 13-26页

作者： Tao Fang danWu MengWang Jiaxin Chen College of Communications Engineering Army Engineering University of PLANanjing 210007China College of Electronic and Information Engineering Nanjing University of Aeronautics and AstronauticsNanjing 211106China

UAV-assisted d2d networks can provide auxiliary communication for areas with poor communication facilities by using the characteristics of easy deployment of unmanned aerial vehicle(UAV),then it becomes a promising ***,the coexistence of UAV and d2d aggravates the conflict of spectrum *** addition,when the UAV performs the communication service,it will inevitably cause the location change,which will make the original channel allocation no longer *** by the influence of frequent channel switching on channel allocation,we define the communication utility as a tradeoff between the throughput and channel switching *** the considered model,we investigate the multi-stage hierarchical spectrum access problem with maximizing aggregate communication utilities in UAV-assisted d2d *** particular,due to the hierarchical feature of the considered network,we adopt Stackelberg game to formulate this spectrum access problem where both the throughput and channel switching cost are *** prove that the proposed game has a stable Stackelberg equilibrium(SE),and the heterogeneous network based channel allocation(HN-CA)algorithm is proposed to achieve the desired *** results verify the validity of the proposed game and show the effectiveness of the HN-CA algorithm.

关键词： UAV d2d multi-stage heterogeneous spectrum access stackelberg game

Gray-Hole Attack Minimization in IoMT with 5G Based d2d Networks

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Computer Systems Science & Engineering 2022年第9期42卷 1289-1303页

作者： V.Balaji P.Selvaraj department of Computing Technologies College of Engineering and TechnologyFaculty of Engineering and TechnologySRM Institute of Science and TechnologyKattankulathur603203TamilnaduIndia

Reliable transmission is vital to the success of the next generation ofcommunications technologies and Fifth Generation (5G) networks. Many sensitive applications, such as eHealth and medical services, can benefit from a 5G network. The Internet of Medical Things (IoMT) is a new field that fosters themaintenance of trust among various IoMT device to device (d2d) modern technologies. In IoMT the medical devices have to be connected through a wirelessnetwork and constantly needs to be self-configured to provide consistent and effi-cient data transmission. The medical devices need to be connected with sophisticated protocols and architecture to handle the synergy of the monitoring ***, one of the commonly used algorithms in d2d communication is the Optimized Link State Routing protocol (OLSR). The OLSR is considerably good ateffectively utilizing the bandwidth and reserving the paths. One of the majorattack against the OLSR is the Node isolation attack, also known as the Gray holedenial of service attack. The Gray hole attack exploits the vulnerabilities presentwith sharing the topological information of the network. The attackers may usethis topological information to maliciously disconnect the target nodes from theexisting network and stops rendering the communication services to the victimnode. Hence, considering the sensitivity and security concerns of the data usedin e-Health applications, these types of attacks must be detected and disabledproactively. In this work, a novel Node Authentication (NA) with OLSR is proposed. The simulation experiments illustrated that the proposed protocol has anexcellent Packet delivery Ratio, minimal End-End delay, and minimal Packet losswhen compared to the Ad-hoc On-demand distance Victor (AOdV) protocol andthe proposed authentication scheme was able to protect the OLSR protocol from anode isolation attack.

关键词： 5G AOdV d2d IoMT OLSR security issues