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The Layered Receiver Employing Whitening Process for Multiple Space-Time Codes  

Yim Eun Jeong (Yonsei Univ., Dept. of Electrical and Electronic)
Kim Dong Ku (Yonsei Univ., Dept. of Electrical and Electronic)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.42, no.3, 2005 , pp. 15-18 More about this Journal
Abstract
Multiple space-time codes (M-STTC) is composed of several space-time codes. That provides high transmission rate as well as diversity and coding gain without bandwidth expansion. In this paper, the layered receiver structures employing whitening process for M-STTC is proposed. The proposed receiver is composed of the decoding order decision block and the layered detection block. The whitening process in the latter is utilized to maximize the receive diversity gain in the layered detection. The layered receiver employing whitening process has more diversity gain and advantage of the required number of receive antenna over the layered detection with MMSE nulling. The proposed scheme achieves a 5dB gain compared to the coded layered space-time processing at the FER of $10^{-2}$.
Keywords
MIMO; whitening process; layered detection; multiple space-time trellis codes;
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