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Joint relay selection and resource allocation in cooperative device-to-device communications

Wang, Ru and Cheng, Deqiang and Zhang, Guopeng and Lu, Youxiong and Yang, Jin and Zhao, Liqiang and Yang, Kun (2017) 'Joint relay selection and resource allocation in cooperative device-to-device communications.' AEÜ - International Journal of Electronics and Communications, 73. 50 - 58. ISSN 1434-8411

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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.

Item Type: Article
Uncontrolled Keywords: D2D communications, Relay selection, Resource allocation, Bargaining game, Proportional fair
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Jim Jamieson
Date Deposited: 14 Feb 2017 10:29
Last Modified: 21 Sep 2018 15:15
URI: http://repository.essex.ac.uk/id/eprint/18995

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