TY  - JOUR
AU  - Sivanesskumar, S. 
AU  - Sukanesh, R. 
PY  - 2011
TI  - Performance Analysis of Global Search Algorithm Based Multiuser Detector for Multi Carrier Code Division Multiple Access System under Clipping Noise
JF  - Journal of Computer Science
VL  - 7
IS  - 5
DO  - 10.3844/jcssp.2011.638.643
UR  - https://thescipub.com/abstract/jcssp.2011.638.643
AB  - Problem statement: Multi Carrier Code Division Multiple Access (MC-CDMA), a
promising technology for the 4G communication systems. The major limitation of MC-CDMA system
is the Multiple Access Interference (MAI) which is due to near-far effect, frequency offset and
nonlinear power amplification due to clipping noise. Approach: The performance of MC-CDMA
under clipping noise using Global search algorithm based Multiuser detector in AWGN, Rayleigh and
Rician channel is analyzed in this study. Results: The proposed method is simulated using BPSK
modulation, Walsh spreading code, number of subcarriers 64 and number of users 16 and clipping
noise. Conclusion: By simulation result, BER in AWGN channel outperforms other channels as SNR
is increased. The performance of Rician fading channel is better than that of Rayleigh fading channel,
because of the LOS path.