Simulink implementation of a CDMA MIMO-beamforming system

Abstract

This paper presents the Simulink implementation of a Multiple Input Multiple Output (MIMO) beamforming system based on the code filtering approach (CFA) and Alamouti's transmit diversity. This model can be used as a platform to test the use of DSPs/FPGs in new generation of MIMO-beamforming systems and will allow evaluating the Bit Error Rate (BER) and the beampattern performances. This goal is achieved through modeling and simulation using the rapid prototyping environment based on Mathworks Simulink. Simulation results show that the proposed hybrid beamforming CFA and space-time coding technologies significantly outperform MIMO systems without beamforming.