Simulink Implementation of a CDMA Smart Antenna System

The main objective of this paper is to develop a new software testbed to aid our research on various smart antenna (SA) technologies proposed for future generation wireless communication systems. These models can be used as a platform to test the use of DSPs/FPGs in new generation CDMA-SA systems and will allow to evaluate the array pattern (AP) and the Bit Error Rate (BER) performance over a range of communication channel conditions, e.g., whether the fading is flat or frequency selective, and how much interference the user is getting from other users. This goal is achieved through modeling and simulation using the rapid prototyping environment based on Mathworks Simulink [5]. BER and AP performances are evaluated for different models under various channel conditions to demonstrate the merits of the combined CDMA-SA system. Key-Words: Smart antenna, Beamforming, DS-CDMA, Simulink, Rapid prototyping.