Real Time Implementation of CDMA Encoding-Decoding by TMS320C50 DSP KIT

Abstract

The steadily decreasing cost of wireless communications and its growing development have resulted in its increased popularity. But the drawback here is to limited bandwidth of transmission medium and multipath interference. So an important challenge in wireless system

design is the selection of an appropriate multiple- access scheme. Among many multiple access

strategies developed so fa ,CDMA (Code Division Multiple Access) based on IS 95 plays an important role. CDMA encoding and decoding is the main feature of CDMA system and it also takes a significant amount of time because of spreading the original signal. So an efficient hardware is necessary for encoding and decoding .This paper includes the CDMA encoding and decoding technique and its real time implementation by TMS320C50 DSP KI .