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Enhancing the Efficiency of Wireless Ad Hoc Networks by Improving the Quality of Service Routing

Mamatha Balachandra, Prema K. V, Krishnamoorthy M Published in Wireless

International Journal of Applied Information Systems
Year of Publication 2012
© 2010 by IJAIS Journal
10.5120/ijais12-450548
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  1. Mamatha Balachandra, Prema K.v and Krishnamoorthy M. Article: Enhancing the Efficiency of Wireless Ad Hoc Networks by Improving the Quality of Service Routing. International Journal of Applied Information Systems 3(5):51-59, July 2012. BibTeX

    @article{key:article,
    	author = "Mamatha Balachandra and Prema K.v and Krishnamoorthy M",
    	title = "Article: Enhancing the Efficiency of Wireless Ad Hoc Networks by Improving the Quality of Service Routing",
    	journal = "International Journal of Applied Information Systems",
    	year = 2012,
    	volume = 3,
    	number = 5,
    	pages = "51-59",
    	month = "July",
    	note = "Published by Foundation of Computer Science, New York, USA"
    }
    

Abstract

Nowadays, Quality of Service in dynamic, wireless multi-hop Ad Hoc networks is becoming a hot research topic. Various QoS routing protocols are proposed. However, most of the QoS routing protocols provide single route to reach from source to destination. Once links break due to node mobility, establishment of new routes leads to large control overhead and extra end-to-end delay. Thus multipath routing has advantages over single path routing protocol. Also, if the existing path is not QoS guaranteed then the performance in terms of QoS metrics degrades. QoS routing is very important especially in the case of multimedia traffic. Initially the systematic performance study is made on existing routing protocol for Ad Hoc networks such as DSDV, DSR and AODV based on QoS parameters delay, jitter, bandwidth, packet delivery ratio etc. Further, a novel QoS multipath Routing algorithm EMQARP (Enhanced Multipath Quality of Service Aware Routing Protocol) is proposed to support QoS metrics. This algorithm finds the QoS routes only, based on the QoS metrics such as Link life time and the delay,in order to ensure that the routes are link reliable and delay aware and stores only those paths in the routing table. The QoS metrics for the route are computed dynamically. The QoS metrics are measured by varying the Mobility, Speed of movement and Number of Nodes. The simulator NS-2. 34 is used.

Reference

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Keywords

QoS, MANET, NS-2.34, AODV, AOMDV, EMQARP, Delay, PDR, Link life time