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TDD MISO系统中波束成形的性能分析
引用本文:赵昆,李亚麟,胡波,张晓文.TDD MISO系统中波束成形的性能分析[J].通信技术,2009,42(8):204-205.
作者姓名:赵昆  李亚麟  胡波  张晓文
作者单位:1. 上海贝尔阿尔卡特股份有限公司,上海,200070
2. 复旦大学,上海,200433
基金项目:国家重大专项"新一代宽带无线移动通信网"子课题"TD-LTE基站试验设备开发" 
摘    要:文中首先指出在时分双工多输入单输出系统中,发送机和接收机的信道状态信息存在时延,而该时延会影响波束成形的性能增益。随后,通过推导接收机误比特率的闭合表达式,说明时延会损害接收机的性能。最后,用数值仿真验证了所做的性能分析的正确性。

关 键 词:时分双工  多输入单输出  波束戍形  时延

Performance Analysis on Beamforming in TDD MISO Systems
ZHAO Kun,Li Ya-lin,Hu Bo,Zhang Xiao-wen.Performance Analysis on Beamforming in TDD MISO Systems[J].Communications Technology,2009,42(8):204-205.
Authors:ZHAO Kun  Li Ya-lin  Hu Bo  Zhang Xiao-wen
Institution:ZHAO Kun, Li Ya-lin, Hu Bo, Zhang Xiao-wen (1Alcatel Shanghai Bell Company Limited, Shanghai, 200070, China; 2Fudan University, Shanghai, 200433, China)
Abstract:This paper first points out that in a TDD (Time Division Duplex) MISO (Multiple-Input Single-Output) system exists a delay between the transmitter' s and receiver' s CSI (Channel State Information), and this delay would have impacts on the performance gain of BF (Beamforming). Then, the closed-form expression of BER (Bit Error Rate) is derived to show that the delay would degrade the performance at the receiver. Finally, the paper describes the numerical simulations for verifying the performance analysis.
Keywords:TDD (Time Division Duplex)  NISO (Multiple-Input Single-Output)  BF (Beamforming)  Delay
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