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Channel Aware Uplink Scheduler for a Mobile Subscriber Station of IEEE 802.16e

by Sandhya Kulkarni, Shwetha D., Devaraju J. T., D. Das
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 35 - Number 6
Year of Publication: 2011
Authors: Sandhya Kulkarni, Shwetha D., Devaraju J. T., D. Das
10.5120/4404-6115

Sandhya Kulkarni, Shwetha D., Devaraju J. T., D. Das . Channel Aware Uplink Scheduler for a Mobile Subscriber Station of IEEE 802.16e. International Journal of Computer Applications. 35, 6 ( December 2011), 15-22. DOI=10.5120/4404-6115

@article{ 10.5120/4404-6115,
author = { Sandhya Kulkarni, Shwetha D., Devaraju J. T., D. Das },
title = { Channel Aware Uplink Scheduler for a Mobile Subscriber Station of IEEE 802.16e },
journal = { International Journal of Computer Applications },
issue_date = { December 2011 },
volume = { 35 },
number = { 6 },
month = { December },
year = { 2011 },
issn = { 0975-8887 },
pages = { 15-22 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume35/number6/4404-6115/ },
doi = { 10.5120/4404-6115 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:21:16.640432+05:30
%A Sandhya Kulkarni
%A Shwetha D.
%A Devaraju J. T.
%A D. Das
%T Channel Aware Uplink Scheduler for a Mobile Subscriber Station of IEEE 802.16e
%J International Journal of Computer Applications
%@ 0975-8887
%V 35
%N 6
%P 15-22
%D 2011
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The scheduling part of the IEEE 802.16 (WiMAX) standards is kept as an open issue to provide differentiation among equipment manufacturers and operators. The uplink scheduling is very significant and more complex compared to downlink scheduling. Uplink scheduling is divided into two parts; one is scheduling the resources among many users from a base station (BS) and the other is sharing the resources among its services in a single user. BS uplink scheduling has been given more attention compared to subscriber station (SS) uplink scheduling. SS scheduler plays a significant role in providing the quality of service (QoS) among its services. The channel status awareness is vital in designing the SS scheduler as the channel conditions vary for a mobile user. This work proposes a scheduling algorithm for SS, which utilizes the channel information and queue length variation for the reallocation of received aggregated bandwidth grant to optimize the QoS parameters. The performance of the proposed algorithm is studied by conducting simulations using QualNet 5.0.2 simulation tool. Simulation results demonstrate the effectiveness of the proposed algorithm to improve the QoS.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Channel aware IEEE 802.16e QoS SS Uplink scheduling WiMAX

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