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Modelling and computationally efficient time domain linear equalisation of nonlinear bandlimited QPSK satellite channelsThe problem of modeling and equalization of a nonlinear satellite channel is considered. The channel is assumed to be bandlimited and exhibits both amplitude and phase nonlinearities. In traditional models, computations are usually performed in the frequency domain and solutions are based on complex numerical techniques. A discrete time model is used to represent the satellite link with both uplink and downlink white Gaussian noise. Under conditions of practical interest, a simple and computationally efficient time-domain design technique for the minimum mean square error linear equalizer is presented. The efficiency of this technique is enhanced by the use of a fast and simple iterative algorithm for the computation of the autocorrelation coefficients of the output of the nonlinear channel. Numerical results on the evaluations of bit error probability and other relevant parameters needed in the design and analysis of a nonlinear bandlimited QPSK system demonstrate the simplicity and computational efficiency of the proposed approach.
Document ID
19910033402
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Konstantinides, K.
(Hewlett-Packard Laboratories Palo Alto, CA, United States)
Yao, K.
(California, University Los Angeles, United States)
Date Acquired
August 15, 2013
Publication Date
December 1, 1990
Publication Information
Publication: IEE Proceedings, Part I: Communications, Speech and Vision
Volume: 137
Issue: 6 De
ISSN: 0956-3776
Subject Category
Communications And Radar
Accession Number
91A18025
Funding Number(s)
CONTRACT_GRANT: NAG2-304
CONTRACT_GRANT: NSF NCR-88-14407
Distribution Limits
Public
Copyright
Other

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