performance evolution for vanets

7/25/2019 Performance Evolution for VANETS

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InternationalJournalofWireless&MobileNetworks(IJWMN)Vol.4,No.1,February2012

PERFORMANCEEVALUATIONOF REALISTICVANET USINGTRAFFICLIGHT SCENARIO

Ni!i1an".#.$obiyal2

1,2%!oolof'outeran%ystes%ienes,Jawa!arlalNe!ru*ni+ersity,New"el!i,

[email protected],[email protected]

ABSTRACT

Vehicular Ad-hoc Networks (VANETs) is attracting considerable attention from the research

community

and the automotive industry to improve the services of ntelligent Transportation !ystem (T!)" As today#stransportation

system

faces

serious

challenges

in

terms

of

road

safety$

e%ciency$

and

e

nvironmentalfriendliness$

the

idea

of

so

called

&T!'

has

emerged"

ue

to

the

epensive

cost

of

deploymentandcompleity

of implementing such

a system in

real

world$ research in VANET relies on

simulation" Thispaper attempts to evaluate the performance of VANET in a realistic environment" The papercontributesby

generating

areal

worldroad

*ap

of

+N,

using

eistingoogle

Earthand!tools"Tra%c

datafrom a limited region of road *ap is collected to capture the realistic mobility" n this work$the entireregion has been divided into various smaller routes" The realistic mobility model used here considers thedriver#s route choice at the run time" t also studies the clustering e.ect caused by tra%c li

ghts used atthe

intersection

to

regulate

tra%c

movement

at

di.erent

directions"

/inally$

the

performance

of

theVANET

is

evaluated

in

terms

of

average

delivery

ratio$

packet

loss$

and

router

drop

as

statisticalmeasures for driver route choice with tra%c light scenario"

This eperiment has provided insight into theperformance of vehicular tra%c communication for a small realistic scenario"

KEYWORDS

ntelligent

Transportation

!ystem$

Vehicular

Ad-hoc

Networks$

eographical

nformatio

n!ystem$

*obility *odel enerator for Vehicular Networks0v"1"23$ !imulation of ,rban *obility04"51"63$

Network!imulator-1"67"

1.INTRODUCTION

s

ert!e

Worl-ealt!r/aniation(W-)statistis,

ore

t!an1.illioneole

worlwieareestiatetobekilleea!yearoutofroaaients.orin/ toanonlineartileublis!ein"euts!eWelle23byMurali#ris!nanate2.04.2010,5Inia6sreorineat!s!astou!eanewlow,astollrosetoatleast14eat!ser!ourin200a/ainst1t!ere+iousyear7.W!ile

truks8lorriesantwo9w!eelerswereresonsible

foro+er40:

eat!s,t!erus!urin/afternoonane+enin/!oursweret!eostfatal!ases.2,3.lso,aser


2/15

anot!erartileofW-(artilein;iesofInia,"iak#uar"as!,;NN,u/1o+ernentanutooti+eInustriestoayaylotofattention towarstraffiana/eentanre/ulationofasoot!traffi.;!eyarein+estin/

any

resoures

to

slow

own

t!e

a+erse

effet

of

transortation

on

en+ironent,

t!erebyinreasin/ traffieffiienyanroasafety.;!ea+aneents in te!nolo/y,in t!eareasofInforationan'ouniations,!a+eoeneanew ran/eofossibilities.neoft!eostroisin/

areasist!estuy

oft!eouniationaon/

+e!ilesan

?oa%ie*nits

"[email protected] 2rounMoel

NetworkInterfae;ye Wireless=!y

M';ye C02.11

InterfaeGueue "ro;ail8=riOueue

$ink$ayer;ye $$

netnna nintenna

IfGlen A0

Varyin/No.ofNoes 10,20,0,40,A0,0,


7/15

ran/eof2A0eters.;!eot!era raetersuseareisussein;ab le2.

Table2.Networkaraeters

242

;!esiulationo+ers0042areaant!efollowin/araeters!a+ebeenusefortraffi

flowbetweennoesinoursiulations..

;able.=araetersof;raffiFlowbetweennoes

ftersettin/ut!enetworkantraffiflowasisusseabo+e,siulationwasonuteby

takin/184t!oft!e

+e!iularnoessenin/'H?traffi

fora

traffi

senarioof10+e!ilesinitially. In t!issenario,A0:of t!e+e!ilesare in+ol+e iniretouniation,w!ereas,

?outin/=rotool "V

;oolo/y(K,)'o9orinates (A,11)

;ransit=ower,=t 0.2C1C

'!annelFreGueny 2412e

?K;!res! .A22e910

'%;!res! (DEr 0.P?K;!res!)

Paraeer, -a'+e,

/ent *"=

=aketQsie 1000

liationQ;raffi 'H?

'H??ate 4kbs

'H?QaEQkts 22C0000

'H?inter+al 0.0Airose

"ifferent?N>see 2,4,,C,10



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restA0:+e!ilesser+esast!eintereiate(orrouter)noesfor t!eouniation.Furt!er,allt!etraffiaraetersas/i+enintablewereketonstanteEetnuberofnoessenin/'H?traffi.;!iswe!a+eonsierealwaysas184

t!oft!enuberof+e!iles20,0,40,A0,0

an


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/ra!iallyinfi/ure


10/15

5.1.2R"+erDr"p$

?outer"roforea!traffi senarioisalulateby takin/t!ea+era/eof?out er "rotot!e

aketssentass!ownbelo w@

A9

:=18!

W!ere,?":L?outer"

r o:

5.1.3

Pa#8e

L",,$

=aketlossisalulatebytakin/t!ea+era/eofaketlosstot!eaketssent.

8;

=(8!

89)

A8;

:=18!

W!ere,=$L=aket$oss.

;!eresultsobtainefor?outer"roan=aket$ossaresuarieintableAfor+aryin/

+e!iulartraffi.;!isisfurt!erillustrateinfi/ure.

24A


;ableA(Nuberof+e!iulartraffi)Vs(?outer"roan=aket$oss:)

8; : =

P100

N"."7-e!#+'arTra(#

R"+erDr"p9 Pa#8eL",,9

10 12.1: 12.2:

20 0.


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Fi/ure.Ve!iular;raffiVs(?outer"ro:&=aket$oss:)usin/traffili/!tsenario.

ur%iulationresultssu//estt!at,t!ereseneoftraffili/!tsatt!eintersetions,eterioratet!eakettransissionrateaninreasest!enuberofaketollisionass!own inFi/ureCan.;!is!aensueto t!e!i/!noeensityat t!eintersetion till t!etraffi li/!tsi/nalturnsto/reenanitalsoresultsinollisionofaketssentby+e!ilesatt!esaetie.Furt!er,itwasobser+e t!att!eaketeli+eryratioketonereasin/sinet!eollisionofaketsoletelyeensont!elusterin/of+e!ilesatt!eintersetion.;!is!enoenonanbeeElainebyeloyentano+eentof+e!ilesina/i+ensenario.Itseest!att!eonneti+itybetweent!e+e!iles/etiro+ebutsiultaneouslyreuest!eeli+eryratio.

24


Fi/ures!owst!eeffetof+aryin/nuberof+e!ilesonaketlossanrouterroto/et!er.

aketayberoebya+e!ileorbyarouter.;!eaketlosserenta/eisonsiereasaketsroeby+e!iles.Furt!er

infi/ure,itisGuite

e+ientt!att!eerenta/e

ofaket

losswassli/!tlyoret!anrouterros.;!is!aensbeauseof!i/!er!anesofaketbein/roeat t!een rat!er t!anbein/roeat intereiatenoes.

-ere,

a/ainfrot!e

fi/ure,it

isGuite

e+ientt!at

t!e

router

roisnot

onfinetoanyinreasin/orereasin/orer.seElainefort!easeoflowereli+erratioinFi/ureC,t!eroratewas!i/!eruetolusterin/effetsof+e!ilesausebytraffili/!tsatt!eintersetion.

:.C ONCLUSION

Int!isaer,we!a+eobtaineanin9si/!t ieaofsiulatin/realworlsenarioofVND;.

sitisnoteasytoeloyanileentsu!aoliatesysteinrealworlbeforeknowin/

t!e

iat

of

all

araeters

use

in

VND;,

a

sall

real

worl

area

i.e.

our*ni+ersity,JN*itself,wastakenintoonsieration,forstuyin/t!eiatofobilityint!eVND;.;raffio+eent!asbeeneloyearosst!eareauneronsierationusin/oneoft!erealisti+e!iularobilityoels.;!ebe!a+ioroft!isnetworkwassiulateusin/N%2tostuy

t!eiat

ofri+er6s

!oiewit!traffili/!ts

at

t!eintersetiononakettransission

o+erV2Vouniation

usin/"Vroutin/rotool

an

IDDDC02.11stanar.

;!e

erforaneof

t!e

network!as

beene+aluateby takin/eli+ery ratio,

aketloss

an

router

roasstatistialeasures.;!e

a+era/e

eli+eryratiofor

+arioussenariossu!as

+aryin/nuberof+e!ileswit!onstantowertransissionran/eof2A0anfreGuenyof


12/15

2.4>-wasobser+etobeC.C:w!ereasaketlosswas40.1C:.

;raffili/!tsenario!asbeenaniortanteasuretore/ulatet!etraffiflowinarounrobin

fas!ion.Hutforatatransission,it!asbeoeanobstalesinet!eaketforwarin/noesat t!eintersetionrost!eakets,ueto t!e!i/!nuberof transissionatt!esaetie.;!erefore,itisonluefrot!eresultst!ataketrosaybereuebyusin/?%*Rst!atan

forwart!eakets

e+enift!eintereiate+e!ilesrost!eaketsatt!eintersetions.

;!erefore,

siulation

of

+e!iular

networks

usin/

?%*

at

t!e

intersetion

will

be

our

futureiretionofresear!.

RE)ERENCES

13 Ni!i&$obiyal,".#.,(2012)5=erforaneD+aluationofVND;usin/realistiVe!iularMobility7,N.Me/!anat!anetal.(Ds.)@Vol.C4,''%I;,=artI,$NI'%;C4,.4


13/15

1.,(200)5nati+elertMessa/e"isseination=rotoolforVND;to

Iro+e?oa%afety7,F*XXQIDDD.

223 Meyer,

-.,

'rues,

.;.,

-ess,

.,

-uel,

#.,

rinas,

J.M.H.,

'asetti,

'.D.,

#arlsson,

>.(2011)5VND;Mobility

Moelin/'!allen/e

by

Feebak$oos7,In@10t!nnual

Meiterranean-oNetworkin/Works!o.

23 %oer,

'.,

"ietri!,

I.,

"ressler,

F.(200


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15/15

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performance evolution for vanets

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