NDLI: Partial maximum likelihood receiver with instantaneous SNR-based subspace search for multistream MIMO

Content Provider	IEEE Xplore Digital Library
Author	Lan Yang Chen Ming Shixin Cheng Haifeng Wang
Copyright Year	2004
Description	Author affiliation: Nat. Mobile Commun. Res. Lab, Southeast Univ., Nanjing, China (Lan Yang; Chen Ming; Shixin Cheng)
Abstract	In this paper we propose a novel PML (partial maximum likelihood) receiver with instantaneous SNR-based subspace search for multistream MIMO (multi-input multi-output) systems. The soft-decision outputs of the conventional ZF receiver are used as the initial estimates for PML. In contrast to the OSIC (ordered successive interference cancellation) making only one hard decision based on soft-decision estimates, the proposed PML receiver set up a subspace for ML search with multiple candidate constellation points. The number of candidates in the subspace search is based on the instantaneous SNR at each data stream. Finally, the hard-decision estimates can be obtained by minimizing the ML function over the subspace search. Numerical results proved that when the number of transmit antennas is less than 4, the proposed PML considerably outperforms the conventional OSIC with approximately the same or even less complexity.
Starting Page	2264
Ending Page	2267
File Size	610785
Page Count	4
File Format	PDF
ISBN	0780385217
ISSN	10903038
DOI	10.1109/VETECF.2004.1400444
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Maximum likelihood estimation Transmitting antennas Maximum likelihood detection Receiving antennas Interference cancellation Signal detection Mobile communication Wireless communication Computer architecture
Content Type	Text
Resource Type	Article

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