相关Nakagami衰落环境中的2D-Rake接收机的BER性能  

BER performance of 2D-Rake receivers in correlated Nakagami-fading

作　　者：黄开枝[1] 王京[1] 

机构地区：[1]清华大学微波与数字通信国家重点实验室,北京100084

出　　处：《通信学报》2003年第9期1-9,共9页Journal on Communications

基　　金：国家自然科学基金资助项目(90204001)

摘　　要：分析了最大比合并(MRC)二维Rake(2D-Rake)接收机,在相关频率选择性Nakagami衰落环境中的平均误比特率(BER)特性。推导了在任意衰落环境中,存在多个共信道干扰的多天线多Rake抽头接收机的信干噪比(SINR)和BER的闭式表达式。文中还进一步说明了角度扩展、天线间隔、空间和时间分集阶数、平均到达角度、平均路径强度以及衰落程度对2D-Rake接收机BER性能的影响。The paper presents the average bit error rate (BER) of a maximal ratio combining (MRC) two-dimensional (2D)-Rake receiver in a correlated frequency selective Nakagami-fading environment. We derived closed-form expressions of the signal-to-interference-and-noise ratio (SINR) and BER for the receiver with multiple correlated antennas and multiple Rake fingers in arbitrary fading environments in the presence of multiple co-channel interferences. The effects of angular spread, antenna spacing, spatial and temporal diversity order, mean angle-of-arrival, average multi-path strength and fading severity on the BER performance of the 2D-Rake receivers are all illustrated.

关 键 词：误比特率 2D-RAKE接收机 相关Nakagami衰落 多址干扰 

分 类 号：TN914[电子电信—通信与信息系统]