International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 54 - Number 14 |
Year of Publication: 2012 |
Authors: D K Patidar, H P Singh, S A Khan |
10.5120/8633-2495 |
D K Patidar, H P Singh, S A Khan . Multiuser Detection using Zero Forcing Successive Interference Cancellation for WCDMA. International Journal of Computer Applications. 54, 14 ( September 2012), 14-17. DOI=10.5120/8633-2495
The performance of the WCDMA system is degraded due to the various network impairments such as interference, fading & noise and also due to network load. The work in this presents performance analysis of zero forcing successive interference cancellation (ZF-SIC) scheme for the multiuser detection in the WCDMA environment. The bit-error rate (BER) of WCDMA using ZF-SIC for binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK) has been analyzed. The ZF-SIC scheme subtracts the strongest received signal from the original one by one till all users have been detected and demodulated. The proposed scheme also suppressed multiple-access interference (MAI) and improved the system performance significantly. The simulation results showed that the BER is decreased the with number of users increased