New hybrid adaptive blind equalization algorithms for QAM signals

Abdenour Labed (1) , Abdeldjalil Aissa El Bey (2, 3) , Thierry Chonavel (3) , Adel Belouchrani (4)

1 EPFL - Ecole Polytechnique Fédérale de Lausanne
2 Lab-STICC_TB_CACS_COM
3 SC - Département Signal et Communications
4 ENP - École nationale polytechnique [Alger, Algérie]

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 $\ell_1$-norm fonctions respectively are investigated. Simulations show the effectiveness of these algorithms.

Domaines: Traitement du signal et de l'image [eess.SP]

Abdenour Labed, Abdeldjalil Aissa El Bey, Thierry Chonavel, Adel Belouchrani. New hybrid adaptive blind equalization algorithms for QAM signals. ICASSP 2009 : 34th IEEE International Conference on Acoustics, Speech, and Signal Processing, Apr 2009, Taipei, Taiwan. pp.2809 - 2812, ⟨10.1109/ICASSP.2009.4960207⟩. ⟨hal-01771219⟩