计算机工程与应用2012，Vol.48Issue(14)：12-16,22,6.DOI:10.3778/j.issn.1002-8331.2012.14.004
基于主用户公平性保护的最优功率分配
Optimal power allocation based on fair protection of primary users
摘要
Abstract
This paper considers an OFDM-based cognitive radio scenario where primary users are the centralized communication system.Since there may exist great differences in the quality among the channels from the secondary transmitter to different users in the primary system, the interference power introduced to them by secondary users may be extremely unbalanced that some of them may suffer severe interference even be interrupted while others may only suffer minor interference.In order to guarantee the communication quality of each user in primary system, it considers the power allocation problem with fair protection of users in the primary system against the interference and its optimal solution is also derived.Numerical results show that the proposed algorithm can reach a good balance between the resource efficiency and the fairness of protection of primary users.关键词
认知无线电/正交频分复用(OFDM)/功率分配/凸优化/对偶分解/公平性保护Key words
cognitive radio/ Orthogonal Frequency Division Multiplexing (OFDM)/ power allocation/ convex optimization/ dual decomposition/ fair protection分类
信息技术与安全科学引用本文复制引用
裴二荣,王晟,张治中..基于主用户公平性保护的最优功率分配[J].计算机工程与应用,2012,48(14):12-16,22,6.基金项目
国家自然科学基金(No.60973160):国家重点基础发展规划(973)(No.2007CB307104) （No.60973160）
国际科技合作项目(No.S2010GR0902) （No.S2010GR0902）
重庆邮电大学基金项目(No.A2009-38,No.A2009-32). （No.A2009-38,No.A2009-32）
