Resource Allocation for Cooperative Relay based Wireless D2D Networks with Selfish Users

• Jinxin Niu,
• Wei Guo,

Vol. 9, No. 6, June 29, 2015
10.3837/tiis.2015.06.002, Download Paper (Free):

• D2D networks
• selfish users
• Cooperative relay
• Resource Allocation
• fairness

Abstract

This paper considers a scenario that more D2D users exist in the cell, they compete for cellular resources to increase their own data rates, which may cause transmission interference to cellular users (CU) and the unfairness of resource allocation. We design a resource allocation scheme for selfish D2D users assisted by cooperative relay technique which is used to further enhance the users｡ｯ transmission rates, meanwhile guarantee the QoS requirement of the CUs. Two transmission modes are considered for D2D users: direct transmission mode and cooperative relay transmission mode, both of which reuses the cellular uplink frequency resources. To ensure the fairness of resource distribution, Nash bargaining theory is used to determine the transmission mode and solve the bandwidth allocation problem for D2D users choosing cooperative relay transmission mode, and coalition formation game theory is used to solve the uplink frequency sharing problem between D2D users and CUs through a new defined ｡ｰSelfish order｡ｱ. Through theoretical analysis, we obtain the closed Nash bargaining solution under CUs｡ｯ rate constraints, and prove the stability of the formatted coalition. Simulation results show that the proposed resource allocation approach achieves better performance on resource allocation fairness, with only little sacrifice on the system sum rates.

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