Performance Evaluation of Hybrid MIMO-OFDM System using Matlab

Multiple Transmit and receive antenna are now popularly used to form multiple input, multiple output (MIMO) channels to increase the capacity as well as to reduce the Bit Error Rate (BER). This paper describes the performance of Hybrid MIMO-OFDM (Orthogonal Frequency Division Multiplexing) models, which are developed & analyzed in Matlab ® Simulink. In this study 2×2 STBC-OFDM and 2×2 SM-OFDM system models are designed.. The performance of both systems is measured with respect to BER and Throughput results & the applications of this system is also demonstrated using 64 QAM modulations by processing real time image as an input. The results indicate that for low to medium SNR, STBC-OFDM system outperforms SM-OFDM system whereas for high SNR the SM-OFDM system can provide double throughput than the STBC-OFDM system. Index Terms —STBC, SM, MIMO, OFDM, Hybrid MIMO-OFDM ——————————  ——————————