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

Abstract

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.