International Journal of Engineering Research and Applications (IJERA)
In modern world, wireless communication systems are involved in every part of life. WiMAX is the upcoming wireless system which uses IEEE standard 802.16.By using WiMAX technology the authors can overcome the limitations of the existing wireless communication like short coverage area, lack of security and low data rate. In this paper, initially the author analyzed the basic concept of WiMAX. Then, they have work on the improvement BER at different SNR of WIMAX system using MATLAB simulation.