A Comprehensive Real-Time Traffic Map for Geographic Routing in VANETs
Vehicular Ad Hoc Networks (VANETs) have attracted a lot of attention during the last decade. VANETs can not only improve driving safety, but also convenience, and support most future Intelligent Transportation System (ITS). Due to the highly dynamic network topology of VANETs, many geographic routin...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2017-01-01
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| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2076-3417/7/2/129 |
| _version_ | 1829503055256616960 |
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| author | Chi-Fu Huang Yuan-Feng Chan Ren-Hung Hwang |
| author_facet | Chi-Fu Huang Yuan-Feng Chan Ren-Hung Hwang |
| author_sort | Chi-Fu Huang |
| collection | DOAJ |
| description | Vehicular Ad Hoc Networks (VANETs) have attracted a lot of attention during the last decade. VANETs can not only improve driving safety, but also convenience, and support most future Intelligent Transportation System (ITS). Due to the highly dynamic network topology of VANETs, many geographic routing protocols have been proposed and use real-time traffic information as an important metric to select a reliable forwarding path. However, most of the existing works do not describe how to gather real-time traffic. They either assume this information is already available, or can query an existing traffic center. Few studies have noticed this issue but the proposed solutions only consider a small region. In this paper, we propose a Comprehensive Real-Time Traffic Map (CRT Map) to collect wide-ranging real-time traffic information with low overhead. In the design of a CRT Map, the concept of Crowdsensing is adopted. Vehicles cooperatively gather traffic information and share it with each other to construct an overview of the whole road network traffic. In addition, we design a CRT Map Based Routing (CBR), which takes into account the connectivity of consecutive roads in routing decisions. Simulation results show that the CBR can achieve a lower end-to-end delay and a higher packet delivery ratio. |
| first_indexed | 2024-12-16T09:51:14Z |
| format | Article |
| id | doaj.art-385234c2d00d447dae31624da0a515f4 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-16T09:51:14Z |
| publishDate | 2017-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-385234c2d00d447dae31624da0a515f42022-12-21T22:36:03ZengMDPI AGApplied Sciences2076-34172017-01-017212910.3390/app7020129app7020129A Comprehensive Real-Time Traffic Map for Geographic Routing in VANETsChi-Fu Huang0Yuan-Feng Chan1Ren-Hung Hwang2Department of Computer Science and Information Engineering, National Chung Cheng University, Chiayi 621, TaiwanDepartment of Computer Science and Information Engineering, National Chung Cheng University, Chiayi 621, TaiwanDepartment of Computer Science and Information Engineering, National Chung Cheng University, Chiayi 621, TaiwanVehicular Ad Hoc Networks (VANETs) have attracted a lot of attention during the last decade. VANETs can not only improve driving safety, but also convenience, and support most future Intelligent Transportation System (ITS). Due to the highly dynamic network topology of VANETs, many geographic routing protocols have been proposed and use real-time traffic information as an important metric to select a reliable forwarding path. However, most of the existing works do not describe how to gather real-time traffic. They either assume this information is already available, or can query an existing traffic center. Few studies have noticed this issue but the proposed solutions only consider a small region. In this paper, we propose a Comprehensive Real-Time Traffic Map (CRT Map) to collect wide-ranging real-time traffic information with low overhead. In the design of a CRT Map, the concept of Crowdsensing is adopted. Vehicles cooperatively gather traffic information and share it with each other to construct an overview of the whole road network traffic. In addition, we design a CRT Map Based Routing (CBR), which takes into account the connectivity of consecutive roads in routing decisions. Simulation results show that the CBR can achieve a lower end-to-end delay and a higher packet delivery ratio.http://www.mdpi.com/2076-3417/7/2/129VANETsgeographic routing protocolreal-time traffic informationcrowdsensing |
| spellingShingle | Chi-Fu Huang Yuan-Feng Chan Ren-Hung Hwang A Comprehensive Real-Time Traffic Map for Geographic Routing in VANETs Applied Sciences VANETs geographic routing protocol real-time traffic information crowdsensing |
| title | A Comprehensive Real-Time Traffic Map for Geographic Routing in VANETs |
| title_full | A Comprehensive Real-Time Traffic Map for Geographic Routing in VANETs |
| title_fullStr | A Comprehensive Real-Time Traffic Map for Geographic Routing in VANETs |
| title_full_unstemmed | A Comprehensive Real-Time Traffic Map for Geographic Routing in VANETs |
| title_short | A Comprehensive Real-Time Traffic Map for Geographic Routing in VANETs |
| title_sort | comprehensive real time traffic map for geographic routing in vanets |
| topic | VANETs geographic routing protocol real-time traffic information crowdsensing |
| url | http://www.mdpi.com/2076-3417/7/2/129 |
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