常州大学学报（自然科学版）2017，Vol.29Issue(6)：69-75,7.DOI:10.3969/j.issn.2095-0411.2017.06.010
基于Outdated CSI固定增益放大转发协作通信系统性能分析
Performance Analysis for Fixed-Gain Amplify-and-Forward Cooperative Communication Systems Based on Outdated CSI
摘要
Abstract
The impact of outdated Channel State Information (CSI)on the performance of fixed-gain Amplify-and-forward (AF)cooperative communication systems considering the partial relay selection schemes is studied.The closed-form expressions for the distribution of received Signal-to-Noise Ratio (SNR)in a relay-selection-assisted cooperative communications system are first derived,in which in-dependent and identically distributed (i.i.d.)Rayleigh fading channels are assumed in each wireless link.After that,the theoretical closed-form expressions for outage probability,symbol error ratio, and average channel capacity are derived.Numerical analysis shows that the performance of fix-gain AF relay-selection scheme can be substantially influenced by parameters such as the number of relays,the channel correlation coefficient,and the end-to-end SNR.Furthermore,compared with the tradi-tional opportunistic-selection scheme,the feedback burden of the proposed scheme will be reduced by 50%,which provides an excellent compromise between complexity and performances of the system.关键词
协作通信/固定增益放大转发/过时的信道状态信息/中继选择Key words
cooperative communication/fixed-gain Amplify-and-Forward (AF )/outdated Channel State Information (CSI)/relay selection分类
信息技术与安全科学引用本文复制引用
钟斌,逯迅,欧阳方恒,席在芳,唐志军..基于Outdated CSI固定增益放大转发协作通信系统性能分析[J].常州大学学报（自然科学版）,2017,29(6):69-75,7.基金项目
国家自然科学基金资助项目 (61501182,U1501253,61377024) （61501182,U1501253,61377024）
深圳大学广东省普及性高性能计算机重点实验室开放课题 (SZU-GDPHPCL2015) （SZU-GDPHPCL2015）
湖南省教育厅科研一般项目 (15C0558) （15C0558）
湖南科技大学博士启动基金(E51539). （E51539）
