混合天线选择的闭环发射分集系统

混合天线选择的闭环发射分集系统

Abstract：The paper investigates closed-loop transmit diversity (CLTD) systems with antenna selection technique. Theexpected received signal-noise-ratio (RxSNR) of the proposed systems is analyzed and compared with CLTD systems. Analgorithm is proposed for determining the number of increased transmit antennas in terms of a reduced RF chains withoutperformance degradation. Since a feedback channel is bandwidth-limited, we present a method of quantizing transmit-weightvectors. Simulation results demonstrate advantage of the proposed systems with full and quantized feedback information.Quantized feedback has less effect on the proposed systems than CLTD systems.

作者：方勇, 朱耀麟,