Improving the performance of QoS models in MANETs through interference monitoring and correction

Wahab, S.H.A., Ould-Khaoua, M. and Mackenzie, L.M. (2007) Improving the performance of QoS models in MANETs through interference monitoring and correction. In: International Conference on Information and Emerging Technologies (ICIET 2007), Karachi, Pakistan, 6-7 July 2007, pp. 1-6. ISBN 9781424412471 (doi: 10.1109/ICIET.2007.4381308)

Abstract

Mobile Ad hoc Networks (MANETs) have been proposed for a wide variety of applications, some of which require the support of real time and multimedia services. To do so, the network should be able to offer quality of service (QoS) appropriate for the latency and throughput bounds to meet appropriate real time constraints imposed by multimedia data. Due to the limited resources such as bandwidth in a wireless medium, flows need to be prioritised in order to guarantee QoS to the flows that need it. In this research, we propose a scheme to provide QoS guarantee to high priority flows in the presence of other high as well as low priority flows so that both type of flows achieve best possible throughput and end-to-end delays. Nodes independently monitor the level of interference by checking the rates of the highest priority flows and signal corrective mechanisms when these rates fall outside of specified thresholds. This research investigates using simulations the effects of a number of important parameters in MANETs, including node speed, pause time, interference, and the dynamic monitoring and correction on system performance in static and mobile scenarios. In this report we show that the dynamic monitoring and correction provides improved QoS than fixed monitoring and correction to both high priority and low priority flows in MANETs.

• Item Type: Conference Proceedings
• Keywords: QoS model, interference and monitoring, high priority flows, MANETs.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Ould-Khaoua, Dr Mohamed and Mackenzie, Dr Lewis
• Authors: Wahab, S.H.A., Ould-Khaoua, M., and Mackenzie, L.M.
• Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science; Q Science > QA Mathematics > QA76 Computer software
• College/School: College of Science and Engineering > School of Computing Science
• Publisher: IEEE
• ISBN: 9781424412471
• Copyright Holders: Copyright © 2007 IEEE
• First Published: First published in the International Conference on Information and Emerging Technologies (ICIET 2007)
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher.