TITLE

Efficient QoS-based Scheduling Mechanisms for IEEE 802.16e Networks

AUTHOR(S)
Priya, M. Deva; Valarmathi, M. L.; Sundarameena, V.
PUB. DATE
June 2013
SOURCE
International Journal of Computer Applications;Jun2013, Vol. 72 Issue 1-23, p34
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Users have become more acquainted to broadband access. IEEE 802.16, a standard for broadband wireless communication in Metropolitan Area Networks (MAN) promises to be one of the best wireless access technologies capable of supporting very high bandwidth applications. The main objective of WiMAX is to deliver wireless communications with high Quality of Service (QoS) guarantees, security and mobility. Many scheduling algorithms compatible with the IEEE 802.16 standards are proposed in the literature with the tenacity of throughput optimization, fairness enhancement and QoS provisioning. However, few scheduling schemes minimize the delay involved. This paper proposes enhancements to the existing scheduling algorithms - Weighted Fair Queuing (WFQ) and Deficit Weighted Round Robin (DWRR). The performance of the existing and proposed algorithms is established by simulating the system under different scenarios. The Novel Weighted Fair Queuing (NWFQ) and Novel Deficit Weighted Round Robin (NDWRR) algorithms yield better Throughput and Packet Delivery Ratio (PDR) and involve less Delay, Jitter and Loss Rate. They are appropriate for scheduling particular types of services.
ACCESSION #
89864280

 

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