International Journal of Engineering Trends and Technology
The authors introduce a paper on IEEE 802.16d/e-PHY layer adapted by WiMAX forum contains multiple specifications, making the standard flexible and adaptable to different frequency ranges. The PHY layer specifies a number of mandatory features and some optional functions must be performed to provide a reliable end-to-end connection has to offer. The primary issue in the implementation of PHY layer is robust performance in multipath fading environments. In this paper, the performance of WiMAX PHY layer with turbo coding mechanisms were investigated and compared with existing mechanisms.