计算机应用研究2012，Vol.29Issue(9)：3386-3390,5.DOI:10.3969/j.issn.1001-3695.2012.09.049
基于OFDM的多用户认知无线电系统的基于效用函数的跨层资源优化分配
Utility based cross-layer resource allocation in multiuser OFDM-based cognitive radio systems
摘要
Abstract
This paper proposed a utility-based cross-layer resource allocation algorithm in multiuser OFDM-based cognitive radio systems, which could not only control the interference to primary users caused by secondary users, but also balance the efficiency and fairness among cognitive users in resource allocation. Simulation shows that the proposed algorithm can obtain the best performance in term of the average rate or utility compared with existing two representative algorithms, and all the users obtain fair resource allocation.关键词
认知无线电/OFDM/功率分配/凸优化/跨层优化/效用函数Key words
cognitive radio/OFDM/power allocation/convex optimization/cross-layer optimization/utility function分类
信息技术与安全科学引用本文复制引用
裴二荣,王晟..基于OFDM的多用户认知无线电系统的基于效用函数的跨层资源优化分配[J].计算机应用研究,2012,29(9):3386-3390,5.基金项目
国家“973”重点基金资助项目(2007CB307104) （2007CB307104）
国家自然科学基金资助项目(60973160) （60973160）
国际科技合作项目(S2010GR0902) （S2010GR0902）
重庆邮电大学基金项目(A2009-38,A2009-32) （A2009-38,A2009-32）
