An Efficient Route Discovery in Manets with Improved Route Lifetime
Keywords:
Mobile ad hoc network, aodv protocol, route lifetime, routing failures, routing overhead, packet delivery ratio.Abstract
Mobile Ad hoc Networks consist of mobile
nodes with limited battery power. The critical issue for routing in mobile ad hoc network is how to select a stable path with longer lifetime since mobility and power drain of a node causes frequent path failure. This path failure causes frequent route discovery which affects the performance of the routing protocol. The path failure also increases
computational overhead of the nodes. Hence, in this paper, we propose three algorithms to estimate the stability of the route by considering the energy drain of the nodes and the rate of mobility. Finally we implement our proposed algorithms in AODV and the performance is evaluated against the
original the performance of the routing protocol. So the route needs to be discovered with longer route lifetime with fewer changes. As the route consists of number of wireless links, the route
lifetime depends on the life time of nodes and individual
links.
The route discovery without considering the
lifetime of the route leads to frequent failure and thereby to
route discovery. As a result the computational overhead
of the routing protocol increases considerably.
AODV.
Our protocol improves the network
performance and reduces the computation overhead by
avoiding frequent route discovery since we select a stable
path with longest life time. With the help of network
simulator we substantiate that our
proposed protocol
performs better than the existing stability-based routing
protocols with improved packet delivery ratio and reduced
routing overhead.
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