Identification and equalization using higher order cumulants in MC-CDMA systems
Mohammed Zidane, Saïd Safi, Mohamed Sabri, Ahmed Boumezzough · 2014
In this paper we propose an algorithm based on fourth order cumulants for identification of linear systems with Non Minimum Phase (NMP) excited by independent identically distributed (i.i.d) non-Gaussian sequences. In order to test its efficiency, we consider one practical frequency-selective fading channel, called Broadband Radio Access Network (BRAN E), normalized for Multi-Carrier Code Division Multiple Access (MC-CDMA) systems. IOn the other hand, we use the Minimum Mean Square Error (MMSE) equalizer after the channel identication to correct the channel distortion. Our simulation results show that, the proposed algorithm provides overall a good channel estimation and a good BER performance.