Performance analysis of the enhanced mesh MAC protocol of mobile WiMAX standard

In this paper we investigate performance of enhanced medium access control (MAC) protocol of the IEEE 802.16e standard (mobile WiMAX). We consider the multipoint-to-multipoint (MPMP) mode MAC because it allows organization of fully mesh and more flexible networks then point-to-multipoint mode (PMP). Enhanced WiMAX features are useful for building a low-cost broadband telecom infrastructure in BRIC and other countries with multiple remote, rural and difficult for access (RRD) territories. We consider probability-time characteristics as average packet delay. These characteristics are derived by the numeric-analytic method of the load intensity balance. The paper is aimed at demonstration of frame sizes, bandwidth requests sizes and round-trip delay influence on the standards´ MAC protocol characteristics. The obtained results display effective ways for essential enhancement of the distributed long-delay WiMAX MAC.