BER Performance Analysis of MIMO With and Without Beamforming and Relaying Techniques

B. Vijaya Lakshmi; N. Durga Naga Lakshmi

Abstract

The exponential surge in data traffic within contemporary communication systems has given rise to a challenge: a shortage in system information rates. To address these pressing issues, large-scale multiple-input multiple-output (MIMO) techniques have emerged as a promising solution. These advanced techniques not only enhance energy efficiency but also optimize spectrum performance, positioning themselves as a pivotal cornerstone for the forthcoming evolution of wireless communication systems. In wireless communication systems, fading is a phenomenon that can at times cause a very faint signal to be received on the other side, leading to errors in the received bits. Bit error rate (BER) needs to be reduced for better signal quality. The beamforming approach is one method for enhancing BER. The BER for QAM in a Rayleigh fading channel with two or more transmitter antenna and one receiver antenna, with or without beam shaping, is examined in this study. Also, the BER performance is analysed using relay techniques and it is observed that BER is minimized using beamforming and relaying techniques.

Abstract

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