Title :
Performance of Volterra and MLSD receivers for nonlinear band-limited satellite systems
Author :
Gutierrez, Alberto ; Ryan, William E.
Author_Institution :
Motorola Natwork Solution Sector, Arlington Heights, IL, USA
fDate :
7/1/2000 12:00:00 AM
Abstract :
This paper evaluates the performance of Volterra equalizers and maximum-likelihood sequence detection (MLSD) receivers for compensation of signal distortion in nonlinear band-limited satellite systems. In addition, the performance of a receiver with a fractionally-spaced equalizer followed by a Volterra equalizer is studied (FSE-Volterra equalizer). For the equalizers, adaptation of the equalizer weights is considered including a multiple-step LMS algorithm which improves the convergence characteristics. Two MLSD receiver structures are considered: the optimum receiver consisting of a matched-filter bank followed by a Viterbi (1967) detector and a suboptimum receiver consisting of a single receiver filter followed by a Viterbi detector. The performance of the MLSD receivers is then compared to that of the equalizers
Keywords :
Volterra series; bandlimited communication; channel bank filters; convergence of numerical methods; equalisers; filtering theory; intersymbol interference; least mean squares methods; matched filters; maximum likelihood detection; optimisation; phase shift keying; radio receivers; satellite communication; telecommunication channels; 4-PSK; 8-PSK; FSE-Volterra equalizer; MLSD receiver; Viterbi detector; Volterra equalizer; Volterra receiver; Volterra series; convergence characteristics; equalizer weights adaptation; fractionally-spaced equalizer; matched-filter bank; maximum-likelihood sequence detection; multiple-step LMS algorithm; nonlinear ISI; nonlinear bandlimited satellite systems; optimum receiver; receiver filter; receiver performance evaluation; signal distortion compensation; suboptimum receiver; Detectors; Equalizers; Intersymbol interference; Least squares approximation; Matched filters; Maximum likelihood detection; Microwave communication; Nonlinear distortion; Satellite broadcasting; Viterbi algorithm;
Journal_Title :
Communications, IEEE Transactions on
