Hierarchical Scheduling with Adaptive Weights for W-ATM

Hui HUANG  Danny H. K. TSANG  Rolf SIGLE  Paul J. KUHN  

IEICE TRANSACTIONS on Communications   Vol.E83-B   No.2   pp.313-320
Publication Date: 2000/02/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (IEICE/IEEE Joint Special Issue on Recent Progress in ATM Technologies)
Category: Wireless ATM
wireless ATM (W-ATM),  medium access control (MAC),  hierarchical scheduling,  fair-queueing,  

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Medium access control (MAC) protocol is one of the key components for providing quality of service (QoS) in wireless ATM (W-ATM) networks. In this paper, we propose a hierarchical scheduling scheme coupled with fair queueing algorithms with adaptive weights. This scheme is intended to be applicable to a TDMA/TDD based MAC protocol. Specifically, the performance of the fair-queueing algorithm using fixed weights and adaptive weights is evaluated and compared. Simulation results show that the proposed hierarchical fair-queueing scheduling with adaptive weights (HAW) can yield a lower cell transfer delay and a higher channel utilization while maintaining fairness among multiple users.