Title
Design and implementation of a new scheduler for enhancing multi-rate fairness in IEEE 802.16
Abstract
Without the definition of a mandatory scheduling algorithm for channel resource assignment, WiMAX is open to Quality of Service (QoS) enhancements by research groups and developers, at the aim of managing heterogeneous flows with different QoS requirements. Furthermore, besides performance enhancement, another key issue arises for QoS delivery: it is known as multi-rate fairness and it deals with efficient resource allocation for providing sufficient bandwidth to high rate flows, without penalizing low rate ones. In this paper, uplink scheduling algorithms are studied and an innovative solution is proposed to achieve performance enhancement, multi-rate fairness and improved QoS management. After an overview of the state of the art, two scheduling algorithms based on Deficit Round Robin are studied, implemented and tested in NS2 simulator. The schedulers are validated and compared through exhaustive simulations, showing the benefits coming from the adoption of the proposed scheduling mechanism.
Year
DOI
Venue
2014
10.1007/s11235-013-9811-1
Telecommunications Systems
Keywords
Field
DocType
Deficit round robin,Multi-rate fairness,Scheduling,Performance evaluation,WiMAX
Deficit round robin,Fair-share scheduling,Scheduling (computing),Computer science,Computer network,Real-time computing,Resource allocation,Maximum throughput scheduling,Fairness measure,Round-robin scheduling,Fair queuing,Distributed computing
Journal
Volume
Issue
ISSN
57
3
1018-4864
Citations 
PageRank 
References 
0
0.34
10
Authors
3
Name
Order
Citations
PageRank
Alessandro Andreadis13710.36
Sandro Rizzuto231.42
Riccardo Zambon3185.37