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Traffic Differentiating Queue For Enhancing AODV Performance in Real-Time Interactive applications

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4 Author(s)
Allaa R. Hilal ; German University in Cairo, New Cairo, Cairo, Egypt ; Amal El-Nahas ; Ahmed Bashandy ; Samir Shahin

The phenomenal growth rate of voice over IP applications is fueling the demand of bridging the gap between real-time QoS guarantees and QoS in ad hoc networks. Multimedia applications are designed for stable networks, with unstable mobile ad-hoc networks presenting a challenge for such applications. Real-time applications require mechanisms that guarantee bounded delay and delay jitter. This paper proposes a traffic differentiating queue (TDQ) for AODV to provide higher QoS guarantees for real-time interactive applications. The popular object-oriented network simulator NS2 has been used for the cross evaluation of the proposed TDQ-AODV. The modified algorithm provides significant improvement over the original algorithm in the average packet delay and throughput, in which the average modification improvement reaches up to 1.5times. Moreover, jitter is generally reduced and stabilized over the varying number of connections.

Published in:

2008 IEEE International Performance, Computing and Communications Conference

Date of Conference:

7-9 Dec. 2008