Performance Improvement of 3GPP LTE System with MC-CDMA Technique

Forthcoming generation of wireless communication system demands high data rate, high spectral efficiency and high capacity to deliver multimedia traffic. Third Generation Partnership Project (3GPP) Long Term Evolution-Advanced (LTE-A) meet these requirements. LTE-A is an advancement of original LTE standard. Air interface in LTE standard is based on OFDM multiple access technology. In this paper Multicarrier Code Division Multiple Access (MC-CDMA) technique is used instead of OFDM multiple access technology to increase the system capacity.  MC-CDMA is a combination of OFDM and CDMA techniques to provide the benefit of both the techniques. This study investigates the BER performance of 3GPP LTE release 13 with MC-CDMA for different channel conditions. The results show that the Bit Error Rate (BER) performance of LTE system with MC-CDMA technique is improved in comparison with the OFDM multiple access technique. Also, a BER performance comparison is made among the different channel conditions and different number of users.