分布式发射天线下BPSKAlamouti方案性能分析(英文)  

Performance Analysis for BPSK Alamouti’s Scheme with Distributed Transmit Antennas

作　　者：李志刚[1] 唐友喜[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室成都611731

出　　处：《电子科技大学学报》2011年第5期667-670,675,共5页Journal of University of Electronic Science and Technology of China

基　　金：supported by the National 863 High Technology Development Project (2009AA01Z236);National Natural Science Foundation of China (60902027, 60832007 and 60901018);the Funds (9140A21030209DZ02);the Fundamental Research Funds for the Central Universities (ZYGX2009J008 and ZYGX2009J010)~~

摘　　要：在分布式发射天线系统中,针对圆形小区下基于Alamouti空时分组编码和采用BPSK调制的情况,推导了误比特性能的近似解析表达式。理论推导过程考虑了路径损耗、阴影衰落、单径瑞利衰落和背景噪声的影响。在2发1收、单径瑞利衰落信道、200 m发射天线间距以及8 dB阴影标准差的条件下进行仿真,结果表明。An approximate expression of bit error rate （BER） is derived for a circular cell distributed antenna system with space-time block coding based on Alamouti＇s scheme and utilizing binary phase shift keying （BPSK） modulation. The analysis is carried out on considering the effects of path loss, log-normal shadowing, multipath fading and background noise. A simulation is carried out under the condition of two transmit and one received antennas, single-path Rayleigh fading channels, antenna spacing of 200 m, and standard deviation of shadowing of 8 dB. The simulation results show that, the numerical results match the simulation results well, and at the BER of 3×10^-1, the proposed method is superior by about 1.4 dB to the traditional methods in bit signal-to-noise ratio.

关 键 词：比特误码率 分布式天线系统 大尺度衰落 空时分组码 

分 类 号：TN911[电子电信—通信与信息系统]