Abstract
Modern communication systems demand proper utilization of power as well as bandwidth. To satisfy the requirements of bandwidth and power, various multiple access technologies are used successfully in communication systems. Code Division Multiple Access (CDMA) is the most popular among these schemes which uses total available channel bandwidth to serve all users simultaneously. In CDMA system, individual user is assigned a unique binary code which is called spreading code. The spreading codes used in CDMA system play a major role to determine the performance of the system. The main objective of system designers is to provide as many distinct codes as possible so that a large number of users can be served at the same time. Another important feature of spreading codes is that they should maintain cross correlation value as low as possible to mitigate the effect of co channel as well as adjacent channel interference. In this paper, an attempt has been made to generate a new set of spreading codes which can provide a large number of distinct codes while maintaining minimum cross correlation among them. The property of the generated code has been studied by examining its cross correlation value. Moreover, the generated code has been used in a synchronous CDMA system and its BER performance has been studied under multi user scenario using AWGN channel.
Published Version
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