NDLI: The Chase family of detection algorithms for multiple-input multiple-output channels

Content Provider	IEEE Xplore Digital Library
Author	Waters, D.W. Barry, J.R.
Copyright Year	2004
Description	Author affiliation: Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA (Waters, D.W.; Barry, J.R.)
Abstract	We introduce a new family of detectors for multiple-input multiple-output (MIMO) channels called Chase detectors because of their resemblance to the well-known Chase algorithm for soft decoding of error-control codes. A Chase detector is fully specified by only three simple parameters; nevertheless, it reduces to a wide range of previously reported MIMO detectors as special cases, including the maximum-likelihood and decision-feedback detectors. Based on the Chase framework, we propose two new detectors, the B-Chase and L-Chase detectors, both of which perform well on fading channels. In fact, the L-Chase detector is shown to outperform the BLAST-ordered decision-feedback detector by 9.8 dB, while simultaneously requiring 17% fewer computations, on a 4-input 4-output Rayleigh-fading channel with uncoded 4-QAM inputs. Under the same conditions, the B-Chase detector falls only 0.2 dB short of the minimum-mean-squared-error sphere detector, while requiring 50% fewer computations.
Starting Page	2635
Ending Page	2639
File Size	706745
Page Count	5
File Format	PDF
ISBN	0780387945
DOI	10.1109/GLOCOM.2004.1378482
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Detection algorithms MIMO Detectors Decoding USA Councils Communications Society Performance analysis
Content Type	Text
Resource Type	Article

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