Abstract
Wireless communication technology has shown that the application of multiple antennas at both transmitter and receiver sides improve the possibility of high data rates through multiplexing or improve the performance through diversity as compare to single antenna systems. In this article,the BER performance of Maximum Likelihood (ML) -Vertical Bells Lab Layered Space Time Architecture (V-BLAST)Spatial Multiplexing Technique using BPSK and QPSK has been investigated in Rayleigh flat fading channel.Furthermore, the comparison of different multiple antenna configurations with BPSK and QPSK have been considered in the given channel. It has been concluded that ML-VBLASTdecoding technique using BPSK modulation scheme gives better results than QPSK modulation technique in Rayleigh channel. More optimal results have been observed for 1×4 antenna configuration for ML-V-BLAST system in Rayleigh channel.
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