Adaptive Modulation and Rate Coding Multi Carrier Code Division Multiple Access Technique for 4g Mobile Communication Systems

Future mobile communication requires 100 Mbps data rate, video and audio streaming, asymmetric, multiple access, adaptive modulation and code rate, dynamic packet arrangement, adaptive antenna and IPv6 utilization facility to enhance lossless communication. We propose an Adaptive Modulation and Rate Coding Multi Carrier Code Division Multiple Access (AMRC-MC-CDMA) technique is a promising way to increase the data rate with reliable transmission over wireless channels. In this paper, we present various digital modulation techniques such as BPSK, QPSK and M-ary PSK systems applied to a coded MC-CDMA system in an AWGN channel environment. This method compares the Bit Error Rate Performance of various code rates using MC-CDMA technique and finally choose the best code rate to achieve better BER performance. It is found that the proposed method gives the optimum performance compared to the conventional MCCDMA system used in fourth generation.