OPTIMAL PARTIAL DECISION COMBINING IN DIVERSITY SYSTEMS

被引:14
作者
KOT, AD
LEUNG, C
机构
[1] Department of Electrical Engineering, University of British Columbia, Vancouver, B.C.
基金
加拿大自然科学与工程研究理事会;
关键词
D O I
10.1109/26.57496
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Many practical diversity receivers employ suboptimal diversity combining schemes which are based on hard decisions (partial decisions) from the demodulator output. The optimal partial decision combiner is derived and its performance is analyzed and compared to majority voting and selection diversity using binary noncoherent frequency-shift keying on a Rayleigh faded additive white Gaussian noise (AWGN) channel. The degradation in the probability of bit error is evaluated when the channel state estimate is imperfect due to parameter quantization, AWGN, and cochannel interference. It is demonstrated that the optimal partial decision combiner can provide a simple means for improving performance on channels with limited cochannel interference. © 1990 IEEE
引用
收藏
页码:981 / 991
页数:11
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