Performance Analysis for Bandwidth Allocation in IEEE 802.16 Broadband Wireless Networks using BMAP Queueing

摘要

This paper presents a performance analysis for the bandwidth allocation inIEEE 802.16 broadband wireless access (BWA) networks considering thepacket-level quality-of-service (QoS) constraints. Adaptive Modulation andCoding (AMC) rate based on IEEE 802.16 standard is used to adjust thetransmission rate adaptively in each frame time according to channel quality inorder to obtain multiuser diversity gain. To model the arrival process and thetraffic source we use the Batch Markov Arrival Process (BMAP), which enablesmore realistic and more accurate traffic modelling. We determine analyticallydifferent performance parameters, such as average queue length, packet droppingprobability, queue throughput and average packet delay. Finally, the analyticalresults are validated numerically.