Enhanced Aodv for Mobile Ad-Hoc Networks

International Journal of Computer Applications (0975 – 8887)

Volume 69– No.7, May 2013

Enhanced AODV for Mobile Ad-hoc Networks

Rohit Sharma

Sangeeta Sharma

Department of CSE & IT

Lovely Professional University, India

Department of CSE & IT

Lovely Professional University, India

ABSTRACT

A mobile ad-hoc network comprises of mobile nodes that can

communicate with the nodes within their radio range and also

with those which are outside range by using route discovery

mechanisms. The nodes in an ad-hoc network can act as a host

and also as a router that can route data to or from the other

nodes. The topology of mobile ad-hoc networks changes

dynamically which is mainly due to arrival or departure of

nodes from the network. The nodes in ad-hoc network are

self-adjusting and can adapt to the changes occurred in the

topology. The main limitation of mobile ad-hoc networks is

the energy constraints. There are three states of a node that

results in energy consumption that are transmitting, receiving

and idle state. The energy consumption of a node leads it to

get down and makes it out of the network. This will lead to

change in topology which incurs routing overhead when

information about the down node has to be transferred to each

node in the network. Again it will result in consumption of

energy which incurs due to processing of these packets

containing the information about the down node. In this paper

we are presenting an enhanced on demand routing protocol in

which each node uses a threshold value for energy and when

the value of energy of that node reaches the threshold that

node will not participate in the data transfer and when all the

nodes in the network possess the set threshold value the

threshold value is decreased. The enhanced protocol is based

on Ad-hoc On Demand Distance vector (AODV) and hence

named as Enhanced AODV (EAODV). In this paper the

working of the EAODV is explained and also the simulation

of the...