Comparative study of AODV, DSR, DSDV Routing Protocol ... · Mobile ad-hoc network has the privilege to use two types of routing ... under high mobility ... of enhanced simulator

44 Rahul, Bhoomika

International Journal of Engineering & Technology, Management and Applied Sciences

www.ijetmas.com Vol 1, Issue 1 June 2014

Comparative study of AODV, DSR, DSDV Routing

Protocol Using Network Simulator-2

Rahul,B.Tech(Scholar),AKGEC,Ghaziabad

Bhoomika,B.Tech(Scholar),AKGEC,Ghaziabad

Abstract

This paper report has two parts of study, the analytical study and the simulation study. From

analytical study, it is concluded that routing protocols play very important role in the

telecommunication and seamless communication. Different protocols have different qualities,

the selection of a suitable protocol definitely increase the performance of the network.

Introduction

Mobile ad-hoc network has the privilege to use two types of routing protocols/ algorithms ,

one of them is proactive routing protocols/ algorithms and the second is re-active routing

protocols/ algorithms. The assortment of these two categories is called hybrid routing

protocols. The best choice among these protocols is the torchbearer to best optimum solution

and effective performance.

This project compared the performance of DSDV, AODVand DSR routing protocols for ad

hoc networks using ns-2simulations. DSDV uses the proactive table-driven routing

Strategy in good way while on other ends AODV and DSR use the reactive strategy. Both

AODV and DSR performbetter under high mobility simulations than DSDV. High

mobility results in frequent link failures and the overheadinvolved in updating all the nodes

with the new routinginformation as in DSDV is much more than that involved

AODV and DSR, where the routes are created as and whenrequired. DSR and AODV both

use on -demand routediscovery, but with different routing mechanics

Analysis

Snapshot of AODV code

We open the text editor to write the code for AODV protocol,and then save it

45 Rahul, Bhoomika



Fig1 Snapshot of AODV code

1. Snapshot of execution of AODV code

Here we firstly open the terminal and by using the CD command we set the path where our

AODV code situated.after setting the path we type the following command to execute aodv

code.Ns 100aodv.tcl

46 Rahul, Bhoomika



When we press enter we can see the message on the terminal that show creation of the node.

Fig 2 Snapshot of terminal

2. Snapshot of initial state of AODV NAM

When code execute a nam file is created on the same location where our program situated

.and the following code in the AODV code file [open testAODV.nam] will open the nam .it

will contain 100 mobile node .the following snapshot show the location of the node before

starting transmission.

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Fig 3 Snapshot of Transmission State

Here node are mobile ,all node are in movement and at the same time transmission is take

place between node 2 and node 11.

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Fig 4. Snapshot of transmission

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Fig 4 Snapshot of transmission at different time

This is snapshot show the transmission at some time.

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Fig 5 Snapshot of Xgraph for Cwnd

CONCLUSION

Mobile ad-hoc network has the privilege to use two categories of routing protocols, one of

them is proactive routing protocols and the other is re-active routing protocols. The

assortment of these two categories is called hybrid routing protocols. The best choice among

these protocols is the torchbearer to best optimum solution and effective performance.

This project compared the performance of DSDV, AODVand DSR routing protocols for ad

hoc networks using ns-2simulations. DSDV uses the proactive table-driven routing

strategy while both AODV and DSR use the reactive Ondemandrouting strategy. Both

AODV and DSR performbetter under high mobility simulations than DSDV. High

51 Rahul, Bhoomika



mobility results in frequent link failures and the overheadinvolved in updating all the nodes

with the new routinginformation as in DSDV is much more than that involved

AODV and DSR, where the routes are created as and whenrequired. DSR and AODV both

use on -demand routediscovery, but with different routing mechanics

Particular. DSR uses source routing and route caches, anddoes not depend on any periodic or

timer-based activities.DSR exploits caching aggressively and maintains multipleroutes per

destination. AODV, on the other hand, usesrouting tables, one route per destination, and

destinationsequence numbers, a mechanism to prevent loops and to

determine freshness of routes. The general observationfrom the simulation is that for

application-oriented metricssuch as packet delivery fraction and delay AODV,

outperforms DSR in more “stressful” situations (i.e.,smaller number of nodes and lower load

and/or mobility),with widening performance gaps with increasing stress

(e.g., more load, high er mobility).

DSR, however,consistently generates less routing load than AODV. Thepoor performances of

DSR are mainly attributed toaggressive use of caching, and lack of any mechanism toexpire

stale routes or determine the freshness of routeswhen mult iple choices are available.

Aggressive caching,however, seems to help DSR at low loads and also keeps itsrouting load

down.

In our Project entitled performance analysis and comparison of routing protocol

In ad-hoc network. We found AODV performance is good than other two routing protocol.

LIMITATION

1. Our project is platform dependent .

2. Installation of NS2 take much amount of time.

3.Finding Error is difficult

4.Complex

FUTURE WORK

In the future, extensive complex simulations could becarried out using the project code, in

order to gain a morein-depth performance analysis of the ad hoc routing protocols. Other

new protocol performance could be studied too.

As future work in addition to end-to-end delay we propose to study the delay jitter

parameter, and investigate its impact on congestion control when the network is highly

loaded. Efficiency of mobile ad-hoc networks in terms of delay jitter would result in

decreased power consumption; therefore network life would be prolonged

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We will also like to suggest the development of enhanced simulator that could simulate the

seamless interaction of mobile nodes between two or more heterogeneous mobile ad-hoc

network and judge their performance. This will definitely establish new contemporary

research in the field of seamless communication enabled MANETs.

REFERENCES 1. D. B. Johnson and D. A. Maltz, “Dynamic Source Routing in Ad-hoc Wireless Netw ork”, Department of

Computer Science Carnegie University, Mellon, 1996.

2. Dr. F. Scott, Dr. A. Luiz Dr. J. Ira and Dr. P. Charles, “Mobile Ad hoc network Routing Protocols

Methodologies and Applications”, Department of Computer Engineering , Blacksburg Virginia, March 19, 2004.

3. “Mobile Ad Hoc Networks”, http://w3.antd.nist.gov/wahn_mahn.shtml. [Accessed: April,28, 2010].

4. K. Gorantala, “Routing Protocols in Mobile Ad-hoc Networks”, Department of Computer Science, Umeå

University, June 15, 2006.

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Documents

Comparative study of AODV, DSR, DSDV Routing Protocol ... · Mobile ad-hoc network has the privilege to use two types of routing ... under high mobility ... of enhanced simulator