Title :
Identification and equalization using higher order cumulants in MC-CDMA systems
Author :
Zidane, Mohammed ; Safi, Said ; Sabri, Mohamed ; Boumezzough, Ahmed
Author_Institution :
Sultan Moulay Slimane Univ., Beni Mellal, Morocco
Abstract :
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.
Keywords :
channel estimation; code division multiple access; equalisers; error statistics; fading channels; higher order statistics; least mean squares methods; linear systems; radio access networks; BER performance; MC-CDMA systems; MMSE; NMP; broadband radio access network; channel distortion; channel estimation; higher order cumulants; linear systems identification; minimum mean square error equalizer; multicarrier code division multiple access systems; nonGaussian sequences; nonminimum phase; practical frequency-selective fading channel; Receivers; Transmitters; Blind identication and equalization; MC-CDMA systems; higher order statistics;
Conference_Titel :
Codes, Cryptography and Communication Systems (WCCCS), 2014 5th Workshop on
Print_ISBN :
978-1-4799-7053-7
DOI :
10.1109/WCCCS.2014.7107925
