TY - JOUR T1 - The Performance of CDMA System with Novel Concatenated EC Schemes in AWGN Channel AU - , A.R. Abdul Rajak JO - Asian Journal of Information Technology VL - 5 IS - 10 SP - 1126 EP - 1130 PY - 2006 DA - 2001/08/19 SN - 1682-3915 DO - ajit.2006.1126.1130 UR - https://makhillpublications.co/view-article.php?doi=ajit.2006.1126.1130 KW - Novel concatented KW -scheme KW -performance KW -research AB - CDMA has become the focus of current research interests to provide higher data rates for end users and to accommodate more users over wireless channels in the next generation communication systems having 3G standard and 4G standard. Two important features of CDMA systems are the use of complex spreading and user dedicated pilot channel. This CDMA system uses QPSK since it is one of m-ary keying systems intended for bandwidth reductions. The performance this system gets s affected by many factors in the channel. This can be done by efficient FEC scheme. This study proposes a novel FEC scheme, which reduces BER and hence improves the performance of the CDMA system ER -