Joint relay selection and resource allocation in cooperative device-to-device communications |
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| Affiliation: | 1. State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, Shaanxi 710071, China;2. School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China;3. School of Computer Science and Technology, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China;4. Wireless Advanced Research Department, ZTE Corporation, Xi’an/Shenzhen, Shaanxi/Guangdong, 710114/518055, China;5. Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China;1. The 14th Research Institute of China Electronics Technology Group Corporation, Nanjing 210039, PR China;2. School of Electronic Engineering and Computer Science, Queen Mary University of London, London E1 4NS, UK;3. School of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, PR China;4. School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa K1N 6N5, Canada;1. National Research Center of Railway Safety Assessment, Beijing Jiaotong University, Beijing 100044, China;2. State Key Lab of Rail Traffic Control & Safety, Beijing Jiaotong University, Beijing 100044, China;1. School of Communication and Electronic Engineering, Qingdao University of Technology, Huangdao District, 266500 Qingdao, China;2. School of Civil Engineering, Qingdao University of Technology, Shibei District, 266033 Qingdao, China;1. MulticoreWare, Inc., St. Louis, MO, USA;2. Department of Electrical and Computer Engineering, Southern Illinois University, Carbondale, IL 62901, USA |
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| Abstract: | Device-to-device (D2D) communications allow proximate cellular user equipments (UEs) to communicate with each other directly under the control of base station (BS). In this paper, considering the selection relaying (SR) rule which allows a subset of potential relays to forward the source’s data to the corresponding destination, we first establish a multi-relay system model where a D2D UE can act as not only a source but also a potential relay for another D2D link, and then analyze the cooperation behaviors among selfish UEs. Next a simple strategy is proposed to deal with the relay selection problem, and then the fair and efficient resource sharing problem among cooperating D2D UEs is formulated as a bargaining game. Since the game function is non-convex, we turn to an iterative method by introducing an auxiliary function to get the proportional fair resource allocation results. The system efficiency and fairness are proved by numeral simulation results. |
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| Keywords: | D2D communications Relay selection Resource allocation Bargaining game Proportional fair |
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