Blind equalization of OFDM systems based an optimal bounding ellipsoid under different channels

A. Moussa (1, 2) , M. Pouliquen (1) , M. Frikel (1) , S. Bedoui (2) , K. Abderrahim (2) , M. M'Saad (1)

1 LAC - Laboratoire d'automatique de Caen
2 ENIG - Ecole Nationale d'Ingénieurs de Gabès

In this paper, we propose a frequency recursive blind equalization algorithm of data in orthogonal frequency division multiplexing (OFDM) system using a cyclic prefix. The proposed algorithm is based on a Set Membership identification methods. More precisely, it is based an Optimal Bounding Ellipsoid (OBE) algorithm. In this document, we consider the presence of bounded noise, of a single Input Single Output (SISO) fast fading channels such as Rayleigh and Rice channels. The numerical simulation shows that the proposed algorithm has good performance under different channels.

Keywords: OFDM; Blind equalizers; Quadrature amplitude modulation; Rayleigh channels; Blind equalisers; Fading channels; OFDM modulation; Recursive estimation; SISO communication; Recursive blind equalization; Fast fading channel

Domains: Engineering Sciences [physics]; Signal and Image processing

A. Moussa, M. Pouliquen, M. Frikel, S. Bedoui, K. Abderrahim, et al.. Blind equalization of OFDM systems based an optimal bounding ellipsoid under different channels. 2017 18th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA), Dec 2017, Monastir, France. ⟨10.1109/STA.2017.8314932⟩. ⟨hal-01821110⟩