BLIND IDENTIFICATION AND EQUALIZATION OF DOWNLINK TCM CODED MC-CDMA SYSTEMS USING CUMULANTS

This paper describes a blind algorithm for TCM coded Multi Carrier Code Division Multiple Access (TCM coded MC-CDMA) systems equalization. The estimation of a time vary-ing and selective frequency fading channel is considered. In order to identify, blindly, the impulse response of these chan-nels, we have used Higher Order Statistics (HOS) to build our algorithm. We have selected two practical selective fre-quency fading channels called Broadband Radio Access Net-work (BRAN A and BRAN E) normalized for TCM coded MC-CDMA systems identification and equalization. For that, we have focussed on the BRAN A and BRAN E channels to develop a blind algorithm able to simulate the measured data with high accuracy. 1