Title :
New hybrid adaptive blind equalization algorithms for QAM signals
Author :
Labed, Abdenour ; Aïssa-El-Bey, Abdeldjalil ; Chonavel, Thierry ; Belouchrani, Adel
Author_Institution :
Comput. Sci. Dept., EMP, Algiers
Abstract :
This paper introduces new hybrid blind equalization algorithms for QAM signals, the first term of which is the constant modulus criterion (CMA) or its extended version (ECMA) and the second are a penalty term that vanishes at constellation points coordinates. Several penalties, based on cosine, Gaussian and polynomial lscr1-norm functions respectively are investigated. Simulations show the effectiveness of these algorithms.
Keywords :
blind equalisers; quadrature amplitude modulation; signal processing; QAM signals; constant modulus criterion; extended constant modulus criterion; hybrid adaptive blind equalization algorithms; Adaptive equalizers; Blind equalizers; Computer science; Constellation diagram; Cost function; EMP radiation effects; Gaussian processes; Polynomials; Quadrature amplitude modulation; Telecommunications; Adaptive equalizers;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-2353-8
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2009.4960207
