An Efficient Beamforming Technique in WiMAX

摘要

The next generation broadband wireless communication offers all types of services at very low cost at any time and at any where basis using Orthogonal Frequency Division Multiplexing and Worldwide Interoperability for Microwave Access Technology. The transmitted signal is distorted by channel noise and interference from other sources causing bit error. Diversity is a technology to reduce both the effects of channel noise and interference. The diversity technique is used in the two previously mentioned techniques to send data through a fading channel at a high symbol rate. Beamforming technique is used to direct a signal to a particular direction. Recently, it is used in the aforementioned second technique to transmit data at a very high rate with low bit error probability. In this paper, we propose an alternative beamforming algorithm in this second technique to obtain better bit error rate performance for a multi-path fading channel, compared to results reported in earlier work The simulation results of the proposed algorithm also show expected performance.