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Dynamic Probabilistic Flooding Performance Evaluation of On-Demand Routing Protocols in MANETs

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4 Author(s)
Hanashi, A.M. ; Networks & Security Res. Group Sch. of Inf., Univ. of Bradford, Mobile, AL ; Siddique, A. ; Awan, I. ; Woodward, M.

In mobile ad hoc networks (MANET), broadcasting is widely used in route discovery and many other network services. The efficiency of broadcasting protocol can affect the performance of the entire network. As such, the simple flooding algorithm aggravates a high number of unnecessary packet rebroadcasts, causing contention and packet collisions. Proper use of probabilistic method can reduce the number of rebroadcasting, therefore reduce the chance of contention and collision among neighboring nodes. A good probabilistic broadcast protocol can achieve high save rebroadcast and low collision. In this paper, we propose a dynamic probabilistic approach when nodes move according to way point mobility model and compare it with simple flooding AODV and fixed probabilistic scheme. Our approach dynamically set the rebroadcasting probability according to the number of neighbours nodes distributed in the ad hoc network. Simulation results show our approach performs better than both simple flooding and fixed probabilistic flooding.

Published in:

Complex, Intelligent and Software Intensive Systems, 2008. CISIS 2008. International Conference on

Date of Conference:

4-7 March 2008