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: | 1-九月-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 |
顯示於類別: | 期刊論文 |