Mobile ad hoc network (MANET) is an autonomous system of mobile nodes connected by wireless links. Each node
operates not only as an end system, but also as a router to forward packets. The nodes are free to move about and organize themselves
into a network. These nodes change position frequently. The main classes of routing protocols are Proactive, Reactive and Hybrid. A
Reactive (on-demand) routing strategy is a popular routing category for wireless ad hoc routing. It is a relatively new routing
philosophy that provides a scalable solution to relatively large network topologies. The design follows the idea that each node tries to
reduce routing overhead by sending routing packets whenever a communication is requested. In this paper an attempt has been made to
compare the performance of two prominent on demand reactive routing protocols for MANETs: Ad hoc On Demand Distance Vector
(AODV), Dynamic Source Routing (DSR) protocols. DSR and AODV are reactive gateway discovery algorithms where a mobile
device of MANET connects by gateway only when it is needed. As per our findings the differences in the protocol mechanics lead to
significant performance differentials for both of these protocols. The performance differentials are analyzed rising varying simulation
time. These simulations are carried out using the ns-2 network simulator. The results presented in this work illustrate the importance
in carefully evaluating and implementing routing protocols in an ad hoc environment.
Published In:IJCSN Journal Volume 8, Issue 6
Date of Publication : December 2019
Pages : 458-465
Figures :14
Tables : --
Pali Kumari :
Department of Computer Science and Engineering, Mewar University, Chittorgarh.
Shiv Kumar :
Department of Computer Science and Engineering, Mewar University, Chittorgarh.
DSR, AODV, DSDV, MAC, Simulation
This project review and compare the two protocols. The
conclusion that if the MANET has to be setup for a small
amount of time then AODV should be prefer due to low
initial packet loss and DSR should not be prefer to setup a
MANET for a small amount of time because initially there
is packet loss is very high. AODV and DSR are very
similar, but AODV mechanisms are easier to implement
and to integrate with other mechanisms using other
different routing protocol. However, AODV maintains
only one route per destination. This is one of the major
problems in AODV, since every time a route is broken; a
route discovery has to be initiated. This leads to more
overhead, higher delays and high packet lost. On the
other hand, DSR seems to be more stable and has
less overhead than AODV.DSR can make use of multiple
paths and does not send a periodic packet as AODV.
Moreover, it stores all usable routing information
extracted from overhearing packets. However, these
overheard route information could lead to inconsistencies.
The two protocols Ad hoc On-Demand Distance Vector
Routing (AODV) and Dynamic Source Routing
(DSR) have been compared using simulation, it would be
interesting to note the behaviour of these protocols on a
real life test bed
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