MOVE: A Practical Simulator for Mobility Model in VANET

MOVE: A Practical Simulator for Mobility Model in VANET

Kun-Chan Lan (National Cheng Kung University, R.O.C.)
DOI: 10.4018/978-1-60566-840-6.ch021
OnDemand PDF Download:


Vehicular Ad-Hoc Network (VANET) is surging in popularity, in which vehicles constitute the mobile nodes in the network. Due to the prohibitive cost of deploying and implementing such a system in real world, most research in VANET relies on simulations for evaluation. A key component for VANET simulations is a realistic vehicular mobility model that ensures conclusions drawn from simulation experiments will carry through to real deployments. However, VANET simulations raise many new questions about suitable levels of details in simulation models for nodes mobility. In VANET simulations, the mobility models used affect strongly the simulation output. The researchers need to decide what level of details are required for their simulations. In this chapter, the authors introduce a tool MOVE that allows users to rapidly generate realistic mobility models for VANET simulations. MOVE is built on top of an open source micro-traffic simulator SUMO. The output of MOVE is a realistic mobility model and can be immediately used by popular network simulators such as ns-2 and Qualnet. The authors show that the simulation results obtained when using a realistic mobility model such as MOVE are significantly different from results based on the commonly used random waypoint model. In addition, the authors evaluate the effects of details of mobility models in three case studies of VANET simulations (specifically, the existence of traffic lights, driver route choice and car overtaking behavior) and show that selecting sufficient level of details in the simulation is critical for VANET protocol design.
Chapter Preview

21.1 Introduction

VEHICULAR Ad-Hoc Network (VANET) communication has recently become an increasingly popular research topic in the area of wireless networking as well as the automotive industries. While it is crucial to test and evaluate protocol implementations in a real world environment, simulations are still commonly used as a first step in the protocol development for VANET research. Several communication networking simulation tools already existed to provide a platform to test and evaluate network protocols, such as ns-2 (T. N. S. ns 2, 2009), OPNET (O. Simulator, 2009) and Qualnet (Q. N. Simulator, 2009). However, these tools are designed to provide generic simulation scenarios without being particularly tailored for applications in the transportation environment. On the other hand, in the transportation arena, simulations have also played an important role. A variety of simulation tools such as PARAMICS (P. M. T. Simulation, 2009), CORSIM (CORSIM, 2009) and VISSIM (P. simulation VISSIM, 2009) etc have been developed to analyze transportation scenarios at the micro- and macro-scale levels. However, there was little effort in integrating communication techniques and scenarios in a realistic transportation simulation environment.

One of the most important parameters in simulating ad-hoc networks is the node mobility. It is important to use a realistic mobility model so that results from the simulation correctly reflect the real-world performance of a VANET. A realistic mobility model should consist of a realistic topological map which reflects different densities of roads and different categories of streets with various speed limits. Another important parameter should be modeled is the obstacles. In the real world, a vehicle node is typically constrained to streets which are separated by buildings, trees or other objects. Such obstructions often increase the average distance between nodes as compared to that in an open-field environment. In addition, each vehicle needs to decide a turning directions at the intersection (e.g. turn left, turn right or go straight). Such a turning model could have an effect on the congestion of the road as well as on the clustering of the vehicles. Furthermore, a smooth deceleration and acceleration model should be considered since vehicles do not abruptly break and move. Some prior studies (Saha et al., 2004; Heidemann et al., 2001) have shown that a realistic model is critical for accurate network simulation results. Selecting appropriate level of details in the mobility model for a VANET simulation is a critical decision. Unrealistic mobility model can produce simulations that are misleading or incorrect. On the other hand, adding details requires time to implement and debug. In addition, it might increase simulation complexity, slow down simulation, and distract the research problem at hand.

Complete Chapter List

Search this Book:
List of Reviewers
Table of Contents
Zsehong Tsai
Chung-Ming Huang, Yuh-Shyan Chen
Chapter 1
Ming-Chiao Chen, Teng-Wen Chang
A vehicular network organizes and connects vehicles with each other, and with mobile and fixed-locations resources. This chapter discusses the... Sample PDF
Introduction of Vehicular Network Architectures
Chapter 2
Yao-Chung Chang
Information and Communication Technology (ICT) is concerned with all the technologies that manage, process, and communicate information. It is also... Sample PDF
Introduction of Vehicular Network Applications
Chapter 3
Da-Jie Lin, Chyi-Ren Dow
Intelligent Transportation Systems (ITS) combines high technology and improvements in information systems, communication, sensors, and relevant... Sample PDF
Introduction to ITS and NTCIP
Chapter 4
Chung-Ping Young
The dramatic advancement of IC technologies makes electronic devices be smaller and run faster, so they are able to implement more functions in a... Sample PDF
Vehicular Embedded System Architecture
Chapter 5
Cheng-Min Lin, Tzong-Jye Liu
ZigBee is based on IEEE 802.15.4 which specifies the physical layer and medium access control (MAC) for low-cost and low-power LR-WPAN. The... Sample PDF
Data Communications Inside Vehicular Environments
Chapter 6
Tzong-Jye Liu, Ching-Wen Chen
The IEEE 1609 standards define communication for wireless access in vehicular environment (WAVE) services, which enable vehicle-to-vehicle... Sample PDF
Wireless Access in Vehicular Environments
Chapter 7
Jenq-Muh Hsu
Understanding the right positions and directions of people and objects is a significant issue from the ancient eras to the present. In the past... Sample PDF
Introduction to Global Satellite Positioning System (GPS)
Chapter 8
Ben-Jye Chang
The most driving purpose is to traverse to the destination safely, efficiently, and comfortably. Two types of approaches could achieve the goals... Sample PDF
Vehicle Location and Navigation Systems
Chapter 9
Min-Xiou Chen
Vehicle Navigation System (VNS) is a complicated and integrated system. A reliable vehicle navigation system should integrate the wireless... Sample PDF
Design and Implementation of Vehicle Navigation Systems
Chapter 10
Cheng Hsuan Cho, Jen-Yi Pan
The WiMAX NWG develops a network reference model to serve as an architecture framework for WiMAX deployments and to ensure interoperability among... Sample PDF
Vehicular Metropolitan Area Network Systems Architecture: The WiMAX Network Reference Model
Chapter 11
Wei-Kuo Chiang, An-Nie Ren
In recent years, more and more people dream of experiencing various IP-based multimedia application services when they are driving through their... Sample PDF
Interworking of IP Multimedia Subsystem and Vehicular Communication Gateway
Chapter 12
Chih-Yung Chang
With the rapid development of wireless technologies, the Vehicular Ad Hoc Networks (VANETs) have recently received much attention. VANETs... Sample PDF
MAC Protocols in Vehicular Ad Hoc Networks
Chapter 13
Yuh-Shyan Chen, Yun-Wei Lin
Vehicular Ad hoc Network (VANET), a subclass of mobile ad hoc networks (MANETs), is a promising approach for the intelligent transportation system... Sample PDF
Routing Protocols in Vehicular Ad Hoc Networks
Chapter 14
Tzung-Shi Chen, Hua-Wen Tsai, Yi-Shiang Chang
The various sensors and wireless communication devices have been extensively applied to daily life due to the advancements of microelectronics... Sample PDF
Applications in Vehicular Ad Hoc Networks
Chapter 15
Kun-Chan Lan
A Delay Tolerant Network (DTN) is one type of challenged network where network contacts are intermittent or link performance is highly variable or... Sample PDF
DTN Technologies for Vehicular Networks
Chapter 16
Chyi-Ren Dow
The Simple Transportation Management Framework (STMF) specifies a set of rules and protocols which can be used to organize, describe, and exchange... Sample PDF
Simple Transportation Management Framework
Chapter 17
Teng-Wen Chang, Jiann-Liang Chen
Notably, not all telematics services can be used in telematics terminals as a result of the varied platform standards. The main issues are that most... Sample PDF
Vehicular System Management Architecture and Application Platform
Chapter 18
Teng-Wen Chang, Jiann-Liang Chen
Due to the rapid development of information technology, the network has already spread to every corner of vehicle. With all kinds of ECU devices... Sample PDF
Remote Vehicular System Management Functions and Information Structure
Chapter 19
Kun-Chan Lan
Wireless mesh networks (WMN) have attracted considerable interest in recent years as a convenient, flexible and low-cost alternative to wired... Sample PDF
Using Wireless Mesh Network for Traffic Control
Chapter 20
Kun-Chan Lan
A key component for VANET simulations is a realistic vehicular mobility model that ensures conclusions drawn from simulation experiments will carry... Sample PDF
Mobility Models of Vehicular Networks
Chapter 21
Kun-Chan Lan
Vehicular Ad-Hoc Network (VANET) is surging in popularity, in which vehicles constitute the mobile nodes in the network. Due to the prohibitive cost... Sample PDF
MOVE: A Practical Simulator for Mobility Model in VANET
Chapter 22
Jen-Chun Chang, Chun-I Fan, Ruei-Hau Hsu
The application of vehicular ad hoc network (VANET) improves driving safety and traffic management. Due to the above applications, security attacks... Sample PDF
Security Attacks of Vehicular Networks
About the Contributors