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A novel Voice Priority Queue (VPQ) scheduler and algorithm for VOIP over WLAN network


Nizar, Kashif and Hassan, Suhaidi and M. Kadhum, Mohammed (2011) A novel Voice Priority Queue (VPQ) scheduler and algorithm for VOIP over WLAN network. Journal of Telecommunication, Electronic and Computer Engineering, 3 (2). pp. 79-94. ISSN 2180-1843

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Abstract

The VoIP deployment on Wireless Local Area Networks (WLANs), which is based on IEEE 802.11 standards, is increasing.Currently, many schedulers have been introduced such as Weighted Fair Queueing (WFQ), Strict Priority (SP) General processor sharing (GPS), Deficit Round Robin (DRR), and Contention-Aware Temporally fair Scheduling(CATS).Unfortunately, the current scheduling techniques have some drawbacks on real-time applications and therefore will not be able to handle the VoIP packets in a proper way.The objective of this research is to propose a new scheduler system model for the VoIP application named final stage of Voice Priority Queue (VPQ) scheduler.The scheduler system model is to ensure efficiency by producing a higher throughput and fairness for VoIP packets.In this paper, only the final Stage of the VPQ packet scheduler and its algorithm are presented.Simulation topologies for VoIP traffic were implemented and analyzed using the Network Simulator (NS-2).The results show that this method can achieve a better and more accurate VoIP quality throughput and fairness index over WLANs.

Item Type: Article
Uncontrolled Keywords: VoIP, WLANs, VPQ Scheduler
Subjects: Q Science > QA Mathematics > QA76 Computer software
Divisions: College of Arts and Sciences
Depositing User: Mrs. Norazmilah Yaakub
Date Deposited: 08 Dec 2013 09:31
Last Modified: 08 Dec 2013 09:31
URI: http://repo.uum.edu.my/id/eprint/9394

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