NDLI: A New Approach for Fast Generalized Complex Sphere Decoding Algorithm in MIMO Systems

Content Provider	IEEE Xplore Digital Library
Author	Chao Liu
Copyright Year	2007
Description	Author affiliation: Sch. of Commun. Eng., Hangzhou Dianzi Univ., Hangzhou (Chao Liu)
Abstract	A fast generalized complex sphere decoder (GCSD) is proposed in this paper. This GCSD can be used to solve the under-determined MIMO systems. Moreover, it can handle not only the QAM and PSK constellations, but also the arbitrary complex constellations. The basic idea is to partition the transmitted signal vector into two sub-vectors. After some transformations, we can use a search scheme which is similar to sphere decoding and a conventional complex sphere decoder to solve these two sub-vectors respectively. Simulation results show that the complexity of our GSCD is significantly lower than the exhaustive search scheme on the under-determined part of the transmitted signal vectors.
Starting Page	342
Ending Page	345
File Size	153444
Page Count	4
File Format	PDF
ISBN	9781424413119
DOI	10.1109/WICOM.2007.92
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Phase shift keying Maximum likelihood estimation Maximum likelihood detection Constellation diagram Quadrature amplitude modulation Receiving antennas Lattices MIMO Maximum likelihood decoding
Content Type	Text
Resource Type	Article

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A New Approach for Fast Generalized Complex Sphere Decoding Algorithm in MIMO Systems