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Design of New Closed-Loop Spatial Multiplexing System Using Linear Precoder  

Chae, Chang-Hyeon (전남대학교 전자컴퓨터공학부 광대역무선통신연구실)
Choi, Dae-Won (전남대학교 전자컴퓨터공학부 광대역무선통신연구실)
Jung, Tae-Jin (전남대학교 전자컴퓨터공학부 광대역무선통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.1A, 2008 , pp. 44-49 More about this Journal
Abstract
Recently, a so called orthogonal spatial multiplexing(OSM) scheme was presented which allows simple maximum likelihood decoding at the receiver with single phase feedback In this paper, by serially concatenating this scheme by a linear precoder, a new closed-loop SM scheme is proposed for two transmit arid two receive antennas. By computer simulation results, we show that the proposed scheme outperforms the conventional SM and OSM. For the proposed code, we also propose a new simple decoding algorithm which leads to a greatly reduced decoding complexity compared with the ML receiver without any loss of error performance.
Keywords
MIMO; BLAST; Multiple Antenna; Fading; Mobile Communication;
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