Title :
Equalization of satellite transmission channels: difficulties related to the nonlinear aspect
Author :
Cherif, Sofiane ; Elasmi, Sadok
Author_Institution :
Lab. des Syst. de Telecommun., Ecole Superieure des Commun. de Tunis, El Ghazala-Ariana, Tunisia
Abstract :
In this paper, we study the influence of the transmission channel nonlinearity on equalization. We consider here a satellite communication channel modeled by a cascade of two linear filters separated by zero memory polynomial nonlinearity. Using a new algebraic framework, issued from the theory of nonlinear system, we analyze first the invertibility of the nonlinear transmission channel. We show that this operation is possible except in some domain of singularity that can be determined. In this case, the equalization will be not possible even by a nonlinear equalizer. Finally, we study the influence of the zero memory nonlinearity parameters on the stability of the transmission channel inverse
Keywords :
algebra; equalisers; nonlinear systems; satellite communication; stability; telecommunication channels; algebraic framework; communication channel model; difference algebra; equalization; nonlinear transmission channel; satellite transmission channels; transmission channel inverse stability; transmission channel nonlinearity; two linear filter cascade; zero memory nonlinearity parameters; zero memory polynomial nonlinearity; Algebra; Digital communication; Equalizers; Interference; Linear systems; Nonlinear filters; Nonlinear systems; Polynomials; Satellite communication; Stability;
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
DOI :
10.1109/ICECS.1999.813426
