Comparative analysis performance of OSTBC/STBC-MIMO under Rayleigh fading channel

The demand for mobile communication systems with high data rates has been growing rapidly over the recent years. Multiple-Input Multiple-Output (MIMO) systems are the most efficient leading innovation of wireless systems for maximum capacity and improved quality and coverage. This paper presents the analysis of Space-Time Block Codes (STBC) used in MIMO systems to assure transmits diversity. The receive diversity is resolved with a ML decoding. This paper guides to select proper architecture of MIMO system in term of best BER, data rates and SNR of system. The results of performance evaluation for MIMO receivers revealed that OSTBC coding has better BER performance than STBC coding.