The Layered Receiver Employing Whitening Process for Multiple Space-Time Codes in Fast Flat Fading Channels(Wireless Communication Technologies)
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概要
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The multiple space-time trellis codes (M-STTC) structure is one of the Multiple Input Multiple output (MIMO) schemes providing high transmission rate and diversity and coding gain without bandwidth expansion. In this paper, an M-STTC system is proposed wherein the transmitter employs a multiple space-time TCM [1] for the fast fading channel and the receiver has a decoding order block, several whitening processors, STTC decoders, and interference cancellers. The proposed layered receiver adopts a whitening process instead of a minimum mean squared error (MMSE) estimator, which is widely used in the BLAST type receiver. An optimum decoding order scheme is also planned since it gives at least a 2 dB gain in the proposed system in the fast flat Rayleigh fading channel of f_dT_c = 1/3 at the FER of 10^<-2>. For an M-STTC system employing two STTCs with four transmit and receive antennas, the layered receiver with whitening process obtains a 5 dB gain over the coded layered space-time processing in the fast flat Rayleigh fading channel at the FER of 10^<-2>.
- 社団法人電子情報通信学会の論文
- 2004-12-01
著者
-
Kim Dong
Department Of Electrical And Electronic Eng. Yonsei University
-
Kim Dong
Department Of Anatomy School Of Medicine Kyungpook National University
-
Yim Eun
Department Of Electrical And Electronic Eng. Yonsei University
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