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QoS Provisioning Through Bandwidth Granting Scheme for Wireless Networks

Authors:
Kuokkwee Wee
Tze Hui Liew
Shih Yin Ooi
Siew-chin Chong

Keywords: scheduling;bandwidth granting;quality of service; 4G; wireless network

Abstract:
Quality of Service (QoS) is an essential element in modern wireless networks such as WiFi, Long Term Evolution (LTE) and Worldwide Interoperability for Microwave Access (WiMAX). The QoS provisioning of a wireless network can be secured in the scheduling, admission control, bandwidth granting and queuing components that reside at the MAC layer. This paper focuses on the bandwidth granting mechanism for uplink traffic transmission. Until now, not much study has been done by researchers on improvements of this particular mechanism although it is an important component in QoS framework. Through our experiments, it is discovered that the network performance could be further improved by introducing custom-designed mechanisms in the bandwidth granting process. Another thing to note is that not all the common scheduling algorithms are appropriate to be implemented since the information on the bandwidth granting process is very limited. Furthermore, the design of bandwidth granting mechanism must be simple and fast. Thus, by taking into account these limitations and concerns, two mechanisms have been proposed and evaluated in this study. The traditional and typical approach used in bandwidth granting scheme is bench-marked and compared with our proposed mechanisms. The simulation results show that our proposed mechanisms outperform the conventional approach.

Pages: 1 to 6

Copyright: Copyright (c) IARIA, 2014

Publication date: February 23, 2014

Published in: conference

ISSN: 2308-4022

ISBN: 978-1-61208-322-3

Location: Nice, France

Dates: from February 23, 2014 to February 27, 2014