Performance Comparison of Multiple Input Multiple Output Techniques for High Data Rate Wireless Communication System

摘要

Meeting the demands that are expected from future wireless generation networks poses intriguing challenges for today's wireless system designers. The demand for higher data rate and better quality of service (QoS) in wireless communications was growing fast in the past few years. Obtaining these requirements becomes challenging for wireless communication systems due to the problems of channel multi-path fading, higher power and bandwidth limitations. One of the most promising solutions to this problem is the Multiple Input Multiple Output (MIMO) system. This paper compared the performance of spatial multiplexing MIMO scheme with beamforming for high data rate wireless communication system. The proposed wireless system was equipped with smart antenna array at both the transmitter and receiver and each of this technique was applied accordingly. The results obtained show that spatial multiplexing technique produced better spectral efficiency than beamforming and improved bit error rate (BER) for the system under the same simulation environment. These two techniques show that the proposed system outperforms the conventional MIMO.