A Proximity-Based Concurrent Access Strategy to Improve Throughput in VANETs

A Proximity-Based Concurrent Access Strategy to Improve Throughput in VANETs

Intervehicle communication gives vehicles opportunities to exchange packets within limited transmission ranges and self-organize with ad hoc manner into VANETs (vehicular ad hoc networks). However, due to shared spectrum and present collisions' resolution mechanism which reject new admissions w...

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Main Authors: Chen Chen, Qingqi Pei, Yanan Jin, Shengjin Ge, Xiaoji Li, Weizhi Dai
Format: Article
Language:English
Published: SAGE Publishing 2013-08-01
Series:International Journal of Distributed Sensor Networks
Online Access:https://doi.org/10.1155/2013/932673
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spelling doaj-0f721b8b4a354185adffc38efdb778972020-11-25T03:43:31ZengSAGE PublishingInternational Journal of Distributed Sensor Networks1550-14772013-08-01910.1155/2013/932673A Proximity-Based Concurrent Access Strategy to Improve Throughput in VANETsChen Chen0Qingqi Pei1Yanan Jin2Shengjin Ge3Xiaoji Li4Weizhi Dai5 State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, China State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, China State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, China CCCC First Highway Consultants Co. Ltd., Xi'an 710075, China Guilin University of Electronic Technology, Guilin 541004, China State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, ChinaIntervehicle communication gives vehicles opportunities to exchange packets within limited transmission ranges and self-organize with ad hoc manner into VANETs (vehicular ad hoc networks). However, due to shared spectrum and present collisions' resolution mechanism which reject new admissions when wireless medium is busy, communications between vehicles have experienced severe throughput degradation and been restrained for concurrent transmissions. In this paper, a PCM (proximity-based concurrent transmission MAC) protocol has been proposed to permit concurrent access in shared channel for improving goodput in VANETs. By introducing game theory to the concurrent transmission opportunities determination process, PCM could provide extra access chances between active nodes or vehicles based on our defined proximity. To make PCM practical, we further give a detailed implementation method on NS2 to evaluate its performance. Numerical results show that PCM is not only feasible and reasonable in theory, but also has great improvement on average transmission delay, delivery ratio, and throughput performance in test.https://doi.org/10.1155/2013/932673
collection DOAJ
language English
format Article
sources DOAJ
author Chen Chen
Qingqi Pei
Yanan Jin
Shengjin Ge
Xiaoji Li
Weizhi Dai
spellingShingle Chen Chen
Qingqi Pei
Yanan Jin
Shengjin Ge
Xiaoji Li
Weizhi Dai
A Proximity-Based Concurrent Access Strategy to Improve Throughput in VANETs
International Journal of Distributed Sensor Networks
author_facet Chen Chen
Qingqi Pei
Yanan Jin
Shengjin Ge
Xiaoji Li
Weizhi Dai
author_sort Chen Chen
title A Proximity-Based Concurrent Access Strategy to Improve Throughput in VANETs
title_short A Proximity-Based Concurrent Access Strategy to Improve Throughput in VANETs
title_full A Proximity-Based Concurrent Access Strategy to Improve Throughput in VANETs
title_fullStr A Proximity-Based Concurrent Access Strategy to Improve Throughput in VANETs
title_full_unstemmed A Proximity-Based Concurrent Access Strategy to Improve Throughput in VANETs
title_sort proximity-based concurrent access strategy to improve throughput in vanets
publisher SAGE Publishing
series International Journal of Distributed Sensor Networks
issn 1550-1477
publishDate 2013-08-01
description Intervehicle communication gives vehicles opportunities to exchange packets within limited transmission ranges and self-organize with ad hoc manner into VANETs (vehicular ad hoc networks). However, due to shared spectrum and present collisions' resolution mechanism which reject new admissions when wireless medium is busy, communications between vehicles have experienced severe throughput degradation and been restrained for concurrent transmissions. In this paper, a PCM (proximity-based concurrent transmission MAC) protocol has been proposed to permit concurrent access in shared channel for improving goodput in VANETs. By introducing game theory to the concurrent transmission opportunities determination process, PCM could provide extra access chances between active nodes or vehicles based on our defined proximity. To make PCM practical, we further give a detailed implementation method on NS2 to evaluate its performance. Numerical results show that PCM is not only feasible and reasonable in theory, but also has great improvement on average transmission delay, delivery ratio, and throughput performance in test.
url https://doi.org/10.1155/2013/932673
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