Title :
A novel spectrally efficient transmit diversity scheme in MIMO-DAS
Author :
Shen, Cong ; Dai, Lin ; Zhou, Shidong ; Yao, Yan
Author_Institution :
State Key Lab on Microwave & Digital Commun., Tsinghua Univ., Beijing, China
Abstract :
Regarding the distributed antenna system (DAS) as an extended MlMO system, we present a novel spectrally efficient downlink closed-loop transmit diversity scheme in MlMO-DAS by considering both small scale and large scale fading. We give the performance analysis of our scheme with both ML and MMSE-SlC detectors. We also improve our algorithm to solve some problems of MMSE-SlC 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.
Keywords :
MIMO systems; antenna arrays; diversity reception; least mean squares methods; maximum likelihood detection; quality of service; closed-loop transmit diversity scheme; distributed antenna system; extended MlMO system; large scale fading; multiple-input multiple-output systems; Detectors; Digital communication; Downlink; Fading; Large-scale systems; MIMO; Performance analysis; Quality of service; System performance; Wireless communication;
Conference_Titel :
Military Communications Conference, 2003. MILCOM '03. 2003 IEEE
Print_ISBN :
0-7803-8140-8
DOI :
10.1109/MILCOM.2003.1290178
