Title :
Performance Analysis of Successive Interference Cancellation in Multiuser CDMA over Flat Channels
Author :
Teo, Kok Ann Donny ; Ohno, Shuichi
Author_Institution :
Dept. of Artificial Complex Syst. Eng., Hiroshima Univ.
Abstract :
We study the bit-error rate (BER) of CDMA system focusing on minimum mean squared error successive interference cancellation (MMSE-SIC). Based on the novel method we developed for MIMO system in (Ohno and Teo, 2005) that do not require the channel probability density functions, we prove analytically that in the non-linear MMSE-SIC scheme, the BER improves with each step of symbol cancellation for any channel that holds not just at high signal-to-noise (SNR) and signal-to-interference noise ratio (SINR) but for all range of SNR and SINR. Simulation results are presented to substantiate our theoretical findings
Keywords :
MIMO communication; code division multiple access; error statistics; interference suppression; mean square error methods; multiuser channels; MIMO system; bit-error rate; channel probability density functions; code division multiple access; flat channels; minimum mean squared error successive interference cancellation; multiuser CDMA system; nonlinear MMSE-SIC scheme; signal-to-interference noise ratio; signal-to-noise ratio; symbol cancellation; Bit error rate; Diversity methods; Interference cancellation; MIMO; Multiaccess communication; Noise cancellation; Performance analysis; Signal to noise ratio; Silicon carbide; Systems engineering and theory;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342534
