Mobility

Multiuser Detection in DSSS Systems

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Executive Summary

This paper describes Multiuser detection with minimized Multiple Access Interference (MAI). Multiuser detection seeks to enhance the performance of non-orthogonal signaling schemes for multiple access communications by combating the MAI caused by the presence of more than one user in the channel. The conventional Code Division Multiple Access (CDMA) system is interference limited system when MAI increases with increasing the number of active users, and when signals are receiving with the different power levels due to near far problem. These factors are taken into account in simulation with the exception that all active users have equal power. The main object of this paper is to detect multiples users with minimized MAI.

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