Binary Maximal-Ratio Combining

摘要：

This paper evaluates the performance of singleinput/ multiple-output (SIMO) wireless communications systems with binary combining vectors for maximum-ratio combining (MRC). Unlike recent work by other researchers who employed BPSK-like-modulated (i.e., 1-valued) vectors for MIMO transmit beamforming, we employ 0=1-valued vectors, for SIMO MRC. Thus, for highly correlated antennas in Rician and Rayleigh fading, such binary MRC is found nearly as effective as MRC using a channel gain vector estimated based on the minimum mean square error (MMSE) criterion. Furthermore, binary MRC is less demanding than MMSE-based MRC because it does not require signal-to-noise ratio knowledge or matrix inversion. We also find that BPSK-like modulation prevents binary MRC from achieving performance similar to that of MMSE-based MRC. Finally, we determine that for binary MRC it is crucial to transform the matrix with the binary combiners according to the channel statistics.

作者: Constantin SIRITEANU Yoshikazu MIYANAGA

作者单位: Hokkaido University, Sapporo, Japan

会议类型: 国际会议

会议名称: 2011亚太信号与信息处理协会年度峰会(APSIPAASC 2011)

会议地点: 西安

会议语种:英文

页码: 1-6

在线出版日期: 2011-10-18（万方平台首次上网日期，不代表论文的发表时间）