Impact of Node Density on Cross Layer Design for Reliable Route Discovery
in Mobile Ad-hoc Networks
B.Ramachandran S.Shanmugavel
Dept. of Electronics & Communication Engg. Dept. of Electronics & Communication Engg.
S.R.M. University Anna University
Chennai – 603 203 Chennai – 600 025
profbram@yahoo.com ssv@annauniv.edu
Abstract :
The mobile nature of nodes and dynamic
topology of Mobile Ad-hoc Networks (MANETs) lead
to route failures and requiring the transmission of
control packets. It is important to reduce the number of
control packets to save resources and to improve the
overall performance of the network. Ad-hoc On-
demand Distance Vector (AODV) is appealing as an
efficient on demand routing protocol because of low
routing overhead and high performance. However,
AODV is not robust against topology variations as it
uses weak links due to long hops introduced by shortest
path metric. In this paper we propose a mobility
adaptive cross layer design to enhance the performance
of AODV routing protocol by establishing stable
routes. The adaptive decision making according to the
speed of mobile nodes on Route Request (RREQ)
packet forwarding results in stable routes. We also test
the impact of node density in the network on our
algorithm, to tell, when to invoke the our cross layer
design in mobile ad-hoc networks. To demonstrate the
efficiency of our protocol and its impact on network
connectivity, we present simulations using network
simulator, GloMoSim.
Keywords: Mobile Ad-hoc Networks, AODV, Routing
Overhead, Stable Route, and Cross Layer Design.
I. Introduction
Recent
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interest
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