Congestion control mechanism in VANET for safety messaging
In vehicular ad-hoc network (VANET), periodic safety messages (beacons) may consume the entire channel bandwidth in dense traffic, resulting in a saturated/congested channel. As a solution to the problem, a congestion control mechanism based on beacon frequency and communication radius adjusting was...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2014-05-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.05.018/ |
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| _version_ | 1841539725396017152 |
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| author | Jian SUN Hong-zhi LI Ling-bo GUO Sheng-lai CHEN |
| author_facet | Jian SUN Hong-zhi LI Ling-bo GUO Sheng-lai CHEN |
| author_sort | Jian SUN |
| collection | DOAJ |
| description | In vehicular ad-hoc network (VANET), periodic safety messages (beacons) may consume the entire channel bandwidth in dense traffic, resulting in a saturated/congested channel. As a solution to the problem, a congestion control mechanism based on beacon frequency and communication radius adjusting was proposed. Firstly, a basic channel re-source allocation algorithm for periodic safety message (PSM) and event-driven safety message (EDSM) was proposed, which limits the beacon load level below a specific threshold and thus implicitly reserves enough bandwidth for EDSM. And then, according to the accuracy and probability of successful reception, the beacon frequency and communication radius dynamically was adjusted to control the number of vehicles in the channel, while maintaining the vehicular safety. |
| format | Article |
| id | doaj-art-499568a32edc432fa072cf136ab60b81 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2014-05-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-499568a32edc432fa072cf136ab60b812025-01-14T06:43:24ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2014-05-013513414059681654Congestion control mechanism in VANET for safety messagingJian SUNHong-zhi LILing-bo GUOSheng-lai CHENIn vehicular ad-hoc network (VANET), periodic safety messages (beacons) may consume the entire channel bandwidth in dense traffic, resulting in a saturated/congested channel. As a solution to the problem, a congestion control mechanism based on beacon frequency and communication radius adjusting was proposed. Firstly, a basic channel re-source allocation algorithm for periodic safety message (PSM) and event-driven safety message (EDSM) was proposed, which limits the beacon load level below a specific threshold and thus implicitly reserves enough bandwidth for EDSM. And then, according to the accuracy and probability of successful reception, the beacon frequency and communication radius dynamically was adjusted to control the number of vehicles in the channel, while maintaining the vehicular safety.http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.05.018/PSMEDSMcongestion controlchannel allocation |
| spellingShingle | Jian SUN Hong-zhi LI Ling-bo GUO Sheng-lai CHEN Congestion control mechanism in VANET for safety messaging Tongxin xuebao PSM EDSM congestion control channel allocation |
| title | Congestion control mechanism in VANET for safety messaging |
| title_full | Congestion control mechanism in VANET for safety messaging |
| title_fullStr | Congestion control mechanism in VANET for safety messaging |
| title_full_unstemmed | Congestion control mechanism in VANET for safety messaging |
| title_short | Congestion control mechanism in VANET for safety messaging |
| title_sort | congestion control mechanism in vanet for safety messaging |
| topic | PSM EDSM congestion control channel allocation |
| url | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.05.018/ |
| work_keys_str_mv | AT jiansun congestioncontrolmechanisminvanetforsafetymessaging AT hongzhili congestioncontrolmechanisminvanetforsafetymessaging AT lingboguo congestioncontrolmechanisminvanetforsafetymessaging AT shenglaichen congestioncontrolmechanisminvanetforsafetymessaging |