Abstract:

A network coding (NC) based twosubscribercooperation scheme in a fullduplex transmission mode of orthogonal frequencydivision multiple access system is proposed to further improve the network throughput. And a double level Nash bargaining solution (DL_NBS) game is adopted to resolve the interuser resource bargaining problem. In the interuser pair, the pairwise capacity based NBS is utilized to allocate subcarrier and distribute power between the cooperative subscribers. Simulations show that the proposed CoNC achieves a system capacity of 491% higher than the normal cooperative transmission, and 464% higher than the direct transmission. Meanwhile, compared with the traditional resource allocation algorithms, the twolevel NBS solution achieves a well tradeoff between fairness and efficiency, and perfectly suits the distributed subscriber cooperation scenario as well. 

Key words: subscriber cooperation, game theory, resource allocation, network coding, Nash bargaining solution