NDLI: Bound-intersection detection for multiple-symbol differential unitary space-time modulation

Content Provider	IEEE Xplore Digital Library
Author	Tao Cui Tellambura, C.
Copyright Year	1972
Abstract	This paper considers multiple-symbol differential detection (MSD) of differential unitary space-time modulation (DUSTM) over multiple-antenna systems. We derive a novel exact maximum-likelihood (ML) detector, called the bound-intersection detector (BID), using the extended Euclidean algorithm for single-symbol detection of diagonal constellations. While the ML search complexity is exponential in the number of transmit antennas and the data rate, our algorithm, particularly in high signal-to-noise ratio, achieves significant computational savings over the naive ML algorithm and the previous detector based on lattice reduction. We also develop four BID variants for MSD. The first two are ML and use branch-and-bound, the third one is suboptimal, which first uses BID to generate a candidate subset and then exhaustively searches over the reduced space, and the last one generalizes decision-feedback differential detection. Simulation results show that the BID and its MSD variants perform nearly ML, but do so with significantly reduced complexity.
Starting Page	2114
Ending Page	2123
Page Count	10
File Size	687596
File Format	PDF
ISSN	00906778
Volume Number	53
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	AWGN Maximum likelihood detection Detectors Transmitting antennas Differential quadrature phase shift keying Phase detection Signal to noise ratio Lattices Receiving antennas Channel state information multiple-symbol differential detection (MSD) Differential space–time coding maximum-likelihood (ML)
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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