Abstract

Multi-Carrier Code Division Multiple Access (MC-CDMA) is a novel approach for advanced wireless communication systems, since it has robustness against multipath fading channels. Due to asyncronous transmission among users Multiple Access Interference (MAI) has huge influence on the performance of MC-CDMA system. For supression of MAI, in this paper we have used MC-CDMA system along with the Orthogonal Complete Complementary (OCC) codes as spreading code for simultaneous transmission with adaptive Switched Interleaving Technique (SIT) at transmitter side to improve the interleaving pattern and Correlation Restoration based MRC (CRMRC) at receiver side to obtain frequency diversity gain. Space Time Block coding (STBC) and Multiple-Input Multiple-output (MIMO) are merged for capacity improvement. Result shows that SIT-CRMRC with OCC codes achieves substantial performance improvement when compared with different schemes with reference to BER and capacity even for increased no. of users.

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