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Reseach Article

Recycling in Bandwidth of IEEE 802.16 Networks

Published on November 2011 by Panatula Suresh Babu, Raga Deepthi Annavarapu
2nd National Conference on Information and Communication Technology
Foundation of Computer Science USA
NCICT - Number 5
November 2011
Authors: Panatula Suresh Babu, Raga Deepthi Annavarapu
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Panatula Suresh Babu, Raga Deepthi Annavarapu . Recycling in Bandwidth of IEEE 802.16 Networks. 2nd National Conference on Information and Communication Technology. NCICT, 5 (November 2011), 24-29.

@article{
author = { Panatula Suresh Babu, Raga Deepthi Annavarapu },
title = { Recycling in Bandwidth of IEEE 802.16 Networks },
journal = { 2nd National Conference on Information and Communication Technology },
issue_date = { November 2011 },
volume = { NCICT },
number = { 5 },
month = { November },
year = { 2011 },
issn = 0975-8887,
pages = { 24-29 },
numpages = 6,
url = { /proceedings/ncict/number5/4218-ncict039/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 2nd National Conference on Information and Communication Technology
%A Panatula Suresh Babu
%A Raga Deepthi Annavarapu
%T Recycling in Bandwidth of IEEE 802.16 Networks
%J 2nd National Conference on Information and Communication Technology
%@ 0975-8887
%V NCICT
%N 5
%P 24-29
%D 2011
%I International Journal of Computer Applications
Abstract

IEEE 802.16 standard was designed to support the bandwidth demanding applications with quality of service (QoS). Bandwidth is reserved for each application to ensure the QoS. For variable bit rate (VBR) applications, however, it is difficult for the subscriber station (SS) to predict the amount of incoming data. In this paper, we propose a scheme, named Recycling Bandwidth, to recycle the unused bandwidth without changing the existing bandwidth reservation. The idea of the proposed scheme is to allow other SSs to utilize the unused bandwidth when it is available. Thus, the system throughput can be improved while maintaining the same QOS guaranteed services. Mathematical analysis and simulation are used to evaluate the proposed scheme. Simulation and analysis results confirm that the proposed scheme can recycle 35% of unused bandwidth on average. By analyzing factors affecting the recycling performance, three scheduling algorithms are proposed to improve the overall throughput.

References
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Index Terms

Computer Science
Information Sciences

Keywords

WiMAX Recycling Bandwidth