NDLI: On linear MMSE based turbo-equalization of nonlinear volterra channels

Content Provider	IEEE Xplore Digital Library
Author	Benammar, B. Thomas, N. Poulliat, C. Boucheret, M.-L. Dervin, M.
Copyright Year	2013
Description	Author affiliation: INPT-ENSEEIHT/IRIT, Univ. of Toulouse, Toulouse, France (Benammar, B.; Thomas, N.; Poulliat, C.; Boucheret, M.-L.) \|\| Thales Alenia Space, Toulouse, France (Dervin, M.)
Abstract	This article deals with Minimum Mean Square Error (MMSE) turbo equalization of nonlinear interference using a volterra series decomposition of the underlying nonlinear channel. Although it has been often argued that linear MMSE based equalization is unsuited for cancelling nonlinear interference, we show that this common belief is not true in a strict sense. By a proper derivation of the linear based MMSE soft equalizer, we are able to show that the underlying structure of the equalizer is equivalent to a Soft Interference Canceller (SIC) treating both the linear and nonlinear interference. Based on these results, approximations are provided for lowering the computational complexity. Links to previously proposed “nonlinear” SIC are emphasized showing that the previously proposed structures are nothing but approximations of a linear MMSE receiver applied to nonlinear ISI channels. Simulations show that significant improvements can be achieved by using the proposed exact and approximate MMSE based turbo-equalizers.
Starting Page	4703
Ending Page	4707
File Size	317567
Page Count	5
File Format	PDF
ISBN	9781479903566
ISSN	15206149
DOI	10.1109/ICASSP.2013.6638552
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Equalizers Satellites Interference Approximation methods Receivers Modulation Bit error rate nonlinear interference iterative equalization volterra series
Content Type	Text
Resource Type	Article

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