NDLI: Reduced-Complexity Iterative Equalization for Severe Time-Dispersive MIMO Channels

Content Provider	IEEE Xplore Digital Library
Author	Ahmed, S. Ratnarajah, T. Sellathurai, M. Cowan, C.F.N.
Copyright Year	1967
Description	In this paper, a reduced-complexity soft-interference-cancellation minimum mean-square-error (SIC-MMSE) iterative equalization method for severe time-dispersive multiple-input-multiple-output (MIMO) channels is proposed. To mitigate the severe time dispersiveness of the channel, a single carrier with cyclic prefix is employed, and the equalization is performed in the frequency domain. This simplifies the challenging problem of equalization in MIMO channels due to both the intersymbol interference (ISI) and the coantenna interference (CAI). The proposed iterative algorithm works in two stages. The first stage estimates the transmitted frequency-domain symbols using a low-complexity SIC-MMSE equalizer. The second stage converts the estimated frequency-domain symbols in the time domain and finds their means and variances to incorporate in the SIC-MMSE equalizer in the next iteration. Simulation results show the bit-/symbol-error-rate performance of the SIC-MMSE equalizer, with and without coding, for various modulation schemes.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	594
Ending Page	600
Page Count	7
File Size	240310
File Format	PDF
ISSN	00189545
Volume Number	57
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Intersymbol interference Computational complexity Decision feedback equalizers OFDM Peak to average power ratio Iterative algorithms Frequency estimation Transmitters Computer aided instruction single carrier with cyclic prefix (SCCP) Frequency-domain equalizer frequency-selective multiple-input–multiple-output (MIMO) channels iterative receiver single carrier with cyclic prefix Frequency domain equalizer frequency-selective MIMO channels
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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