NDLI: A Novel Hybrid Uplink Bandwidth Scheduler in WiMAX Real Time Communication Networks

Content Provider	IEEE Xplore Digital Library
Author	Wei Nie Naixue Xiong Houjun Wang
Copyright Year	2010
Abstract	As Scheduling for real time polling services (rtPS) is not defined in IEEE 802.16 standard, there are various approaches described to address this issue. IEEE 802.16 has detailed documents about the QoS parameter. However, they do not mention the scheduling algorithm to be used. The essential goals of this packet scheduling scheme are to guarantee the QoS parameter as well as provide fairness among the subscriber stations. In this paper, we first use Earliest Deadline First (EDF) algorithm to schedule the real time service according to the QoS requirement. This meets maximum delay and packet loss requirements of a subscriber station in WiMax communication networks. In addition to satisfying the QoS requirements, we modify and extend the Proportional Fairness scheduling algorithm to what we call the Subscriber Stations Based Proportional Fairness (SSBPF) algorithm, which allocates remaining bandwidth fairly amongst subscriber stations. The algorithm has been implemented and evaluated in a WiMAX simulation platform developed in OPNET. From the simulation results, we can see not only the QoS requirement is satisfied, but also is fair to all subscriber stations in WiMax networks.
Starting Page	1
Ending Page	6
File Size	307371
Page Count	6
File Format	PDF
ISBN	9781424488131
ISSN	19760035
e-ISBN	9781424488124
DOI	10.1109/ICUT.2010.5677842
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems Quality of service Bandwidth WiMAX Throughput Scheduling algorithm Delay
Content Type	Text
Resource Type	Article

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