標題: Coalitional Power Control and Time Allocation for Multiuser Cognitive Networks
作者: Chan, Yu-Wei
Chien, Feng-Tsun
Park, James J.
Hung, Jason C.
Yen, Neil Y.
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: Coalitional Game;Core;Shapley Value;Power Control;Cooperative Cognitive Radio Networks
公開日期: 1-Sep-2013
摘要: This paper considers the problem of resource allocation for a cooperative cognitive radio network with multiple primary users (PUs) and multiple secondary users (SUs), in which secondary users (SUs) relay traffics for primary users, in exchange for dedicated transmission time for their own transmission needs. However, since the PUs and SUs are rational, they aim at maximizing their own utility. Therefore, the problem of conflicting interests between them exists. We formulate the problem as a coalitional game to analyze the cooperation behavior between PUs and SUs. We propose to form the grand coalition by grouping all PUs and SUs in a set, and to use the core and the Shapley value solution concepts, respectively to analyze the stability and fairness of cooperative resource allocation. The optimal fraction of time allocation and power allocation for PUs and SUs are derived by an iterative updating algorithm, respectively. Simulation results show the benefits of our proposed approach as compared with other approaches.
URI: http://dx.doi.org/10.1166/sl.2013.2993
http://hdl.handle.net/11536/23729
ISSN: 1546-198X
DOI: 10.1166/sl.2013.2993
期刊: SENSOR LETTERS
Volume: 11
Issue: 9
起始頁: 1741
結束頁: 1749
Appears in Collections:Articles