A novel spectrally efficient transmit diversity scheme in MIMO-DAS

Authors:
Cong Shen;Lin Dai;Shidong Zhou;Yan Yao
Affiliations:
State Key Lab on Microwave & Digital Communications, Tsinghua University, Beijing, China;State Key Lab on Microwave & Digital Communications, Tsinghua University, Beijing, China;State Key Lab on Microwave & Digital Communications, Tsinghua University, Beijing, China;State Key Lab on Microwave & Digital Communications, Tsinghua University, Beijing, China
Venue:
MILCOM'03 Proceedings of the 2003 IEEE conference on Military communications - Volume I
Year:
2003

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Abstract

Regarding the Distributed Antenna System (DAS) as an extended MIMO system, we present a novel spectrally efficient downlink closed-loop transmit diversity scheme in MIMO-DAS by considering both small scale and large scale fading. We give the performance analysis of our scheme with both ML and MMSE-SIC detectors. We also improve our algorithm to solve some problems of MMSE-SIC detector. Simulation results show that better performance can be achieved with the improved algorithm, and at the same time it maintains the same high spectral efficiency.