Distributed power allocation based on coalitional and noncooperative games for wireless networks

The performance in cooperative communication depends on careful resource allocation such as relay selection and power Control. This paper introduces novel concepts for relay selection schemes based on coalitional game theory which establishes the dynamic formation of coalitions in multi user wireless networks. Then we present a power allocation for wireless data transmission among coalition based on a noncooperative game. Through this games theoretical framework, source nodes are able to self organize and form a stable coalitions and set their transmission powers in a completely distributed manner. Numerical results denote that the proposed algorithm achieves significant reduction in energy consumption and improvement in payoff for the users, compared to noncooperative power control approaches.