Title :
Iterative multiuser detection of CDMA in fading channels
Author :
Shah, Syed Ismail ; Ur Rehman, Habib ; Jamal, Habibullah ; Zaka, I. ; Naeem, M. ; Ahmad, Jamil
Author_Institution :
Iqra Univ., Islamabad
Abstract :
A new multiuser detection technique is proposed which is based on Gaussian approximation. The system uses conventional reverse link CDMA transmitter and a proposed receiver. In the receiver, the interference rejection block, known as Signal Reliability Estimator (SRE) and the decoder (DEC), exchange extrinsic information in an iterative manner. The system is analyzed in Rayleigh fading channels. It is observed from simulation results that Bit Error Rate (BER) of the system is almost independent of the number of users.
Keywords :
Rayleigh channels; code division multiple access; error statistics; multiuser detection; Gaussian approximation; Rayleigh fading channels; bit error rate; iterative multiuser detection technique; reverse link CDMA transmitter; signal reliability estimator; AWGN; Detectors; Fading; Iterative algorithms; Iterative decoding; Maximum likelihood detection; Multiaccess communication; Multiuser detection; Reliability engineering; Transmitters; Iterative detection; Multiuser detection; Rayleigh fading channel;
Conference_Titel :
Signal Processing and Its Applications, 2007. ISSPA 2007. 9th International Symposium on
Conference_Location :
Sharjah
Print_ISBN :
978-1-4244-0778-1
Electronic_ISBN :
978-1-4244-1779-8
DOI :
10.1109/ISSPA.2007.4555299
