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Analysis Of Unicast Routing
Protocols For VANETs
作者:
Juan Angel Ferreiro-Lage, Cristina Pereiro Gestoso, Oscar Rubiños,
Fernando Aguado Agelet
Department of Signal Theory and Communications
University of Vigo, Vigo, Spain
1
Outline
2

I.
Introduction

II.
Description of ad hoc routing protocols

III. Simulation of car-to-car communications

IV. Results
Introduction
3

Nowadays, most cars include
Global Positioning System (GPS)
devices, so the position of each
vehicle can be determined at realtime.

as soon as two or more vehicles
are close enough to establish a
communication level.
Introduction
4

The routing protocols can be
classified as follows:

According to range: anycast, unicast,
broadcast, multicast;

According to the route discovery:
proactive, reactive, hybrid;

According to the used algorithm: link
state, vector distance, georouting.
Description of ad hoc
routing protocols
5

A. Dynamic Source Routing(DSR)
6

B. Ad Hoc On-Demand Distance Vector(AODV)
7
C. Destination Sequence Distance Vector(DSDV)
A
Node
DEST
A
NEXT
A
METRIC
0
SEQ
A-550
B
B
1
B-104
C
B
2
C-509
C
B Node
DEST
A
B
C
NEXT
A
B
C
METRIC
1
0
1
SEQ
A-550
B-104
C-509
Node
DEST
NEXT
METRIC
SEQ
A
B
2
A-550
B
B
1
B-104
C
C
0
C-509
8
Simulation of car-to-car
communications

In the first case, a simulation
among 10 nodes is done. This
communication takes place
between the first and the last
vehicle with 8 vehicles between
them.
9
Results
10
11