PERFORMANCE AND CAPACITY COMPARISON BETWEEN HYBRID BLAST-STBC, VBLAST AND STBC SYSTEMS

Abstract

The hottest issue of next generation communication systems is data throughput improvement for any wireless channel conditions. MIMO systems are the key techniques for the next generation communication systems. BLAST systems achieve high data rates with acceptable BER performance over a good channels state while STBC systems can achieve better BER performance even for bad-state channels but with lower data rates than BLAST. Hybrid BLAST-STBC systems is the effective solution to achieve a good tradeoff between STBC and BLAST systems since it improves the BER performance and keep them robust over a special MIMO channel state compared with the conventional BLAST system. This paper will study and compare the hybrid BLASTSTBC systems BER performance and capacity at ML receiver with both BLAST and STBC systems. MATLAB software has been used as the main platform for system simulation.