APPLICATIONS OF THE CROSS-LAYER PARADIGM FOR IMPROVING THE PERFORMANCE OF WIMAX

IEEE 802.16 WiMAX is anticipated to operate across diverse and formidable circumstances under stringent performance requirements such as reduced delay, jitter, and dropped packets while providing high network utilization. As a potential remedy to alleviate these performance challenges, cross-layer design and optimization beyond layered architecture have been envisioned as in many similar communication systems. In this article some recent cross-layer design and solutions for improving the performance of IEEE 802.16 WiMAX are described. Moreover, a novel routing-scheduling scheme to illustrate the application and realization of the cross-layer paradigm in this domain is presented.