Title :
Performance analysis of combined equalization and decoding in the trellis coded nonlinear satellite channel
Author :
Heo, S.W. ; Gelfand, S.B. ; Krogmeier, J.V.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
Advanced receiver based techniques to alleviate the effects of nonlinear distortion in the bandlimited coded nonlinear satellite channel are considered. We propose a reduced complexity combined maximum likelihood equalization and decoding method using a nonlinear Volterra channel model in the trellis coded system. Our scheme includes conventional nonlinear compensation based on centroid estimation and decoding metric modification as a special case. Both analysis and simulation results show significant performance gain compared with separate Volterra equalization and decoding and also centroid estimation based decoding. Several methods of performance analysis in the nonlinear channel are discussed and compared
Keywords :
bandlimited communication; channel coding; equalisers; error statistics; maximum likelihood decoding; maximum likelihood estimation; nonlinear distortion; satellite communication; telecommunication channels; trellis coded modulation; BER; advanced receiver based techniques; bandlimited channel; centroid estimation; combined equalization/decoding; decoding metric modification; maximum likelihood equalization; nonlinear Volterra channel model; nonlinear compensation; nonlinear distortion; performance analysis; reduced complexity method; simulation results; trellis coded nonlinear satellite channel; Analytical models; Filter bank; Intersymbol interference; Maximum likelihood decoding; Maximum likelihood estimation; Nonlinear distortion; Performance analysis; Predistortion; Quadrature amplitude modulation; Satellite broadcasting;
Conference_Titel :
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-7097-1
DOI :
10.1109/ICC.2001.937052
