An effective back-off selection technique for reliable beacon reception in VANETs
In safety-critical scenarios, reliable reception of beacons transmitted by a subject vehicle is critical to avoid vehicle collision. According to the employed contention window sizes in IEEE 802.11p, beacons are transmitted with a small contention window size. As a result, multiple vehicles contend...
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| Format: | Article |
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Wiley
2019
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| author | Shah, Syed Adeel Ali Ahmed, Ejaz Qureshi, Muhammad Ahsan Jan, Sadeeq Noor, Rafidah Md |
| author_facet | Shah, Syed Adeel Ali Ahmed, Ejaz Qureshi, Muhammad Ahsan Jan, Sadeeq Noor, Rafidah Md |
| author_sort | Shah, Syed Adeel Ali |
| collection | UM |
| description | In safety-critical scenarios, reliable reception of beacons transmitted by a subject vehicle is critical to avoid vehicle collision. According to the employed contention window sizes in IEEE 802.11p, beacons are transmitted with a small contention window size. As a result, multiple vehicles contend for the shared channel access by selecting the same back-off slot. This is a perfect recipe for synchronous collisions wherein reliable beacon delivery cannot be guaranteed for any vehicle. We consider the problem of selecting the back-off slots from the current contention window to provide reliable delivery of beacons transmitted by a subject vehicle to its neighbors. Given a safety scenario, we propose a Pseudo-Random Number Generator (PRNG)-inspired back-off selection (PBS) technique. The proposed technique works on the hypothesis that synchronous collisions of beacons transmitted by a subject vehicle can be reduced if all its neighbors select different back-off slots (ie, not the back-off slot selected by the subject vehicle). The discrete-event simulations demonstrate that PBS can increase the overall message reception from a subject vehicle, in comparison with the uniform random probability back-off selection in IEEE 802.11p. © 2019 John Wiley & Sons, Ltd. |
| first_indexed | 2024-03-06T06:00:00Z |
| format | Article |
| id | um.eprints-23487 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T06:00:00Z |
| publishDate | 2019 |
| publisher | Wiley |
| record_format | dspace |
| spelling | um.eprints-234872020-01-20T06:39:07Z http://eprints.um.edu.my/23487/ An effective back-off selection technique for reliable beacon reception in VANETs Shah, Syed Adeel Ali Ahmed, Ejaz Qureshi, Muhammad Ahsan Jan, Sadeeq Noor, Rafidah Md QA75 Electronic computers. Computer science In safety-critical scenarios, reliable reception of beacons transmitted by a subject vehicle is critical to avoid vehicle collision. According to the employed contention window sizes in IEEE 802.11p, beacons are transmitted with a small contention window size. As a result, multiple vehicles contend for the shared channel access by selecting the same back-off slot. This is a perfect recipe for synchronous collisions wherein reliable beacon delivery cannot be guaranteed for any vehicle. We consider the problem of selecting the back-off slots from the current contention window to provide reliable delivery of beacons transmitted by a subject vehicle to its neighbors. Given a safety scenario, we propose a Pseudo-Random Number Generator (PRNG)-inspired back-off selection (PBS) technique. The proposed technique works on the hypothesis that synchronous collisions of beacons transmitted by a subject vehicle can be reduced if all its neighbors select different back-off slots (ie, not the back-off slot selected by the subject vehicle). The discrete-event simulations demonstrate that PBS can increase the overall message reception from a subject vehicle, in comparison with the uniform random probability back-off selection in IEEE 802.11p. © 2019 John Wiley & Sons, Ltd. Wiley 2019 Article PeerReviewed Shah, Syed Adeel Ali and Ahmed, Ejaz and Qureshi, Muhammad Ahsan and Jan, Sadeeq and Noor, Rafidah Md (2019) An effective back-off selection technique for reliable beacon reception in VANETs. International Journal of Communication Systems, 32 (13). e4019. ISSN 1074-5351, DOI https://doi.org/10.1002/dac.4019 <https://doi.org/10.1002/dac.4019>. https://doi.org/10.1002/dac.4019 doi:10.1002/dac.4019 |
| spellingShingle | QA75 Electronic computers. Computer science Shah, Syed Adeel Ali Ahmed, Ejaz Qureshi, Muhammad Ahsan Jan, Sadeeq Noor, Rafidah Md An effective back-off selection technique for reliable beacon reception in VANETs |
| title | An effective back-off selection technique for reliable beacon reception in VANETs |
| title_full | An effective back-off selection technique for reliable beacon reception in VANETs |
| title_fullStr | An effective back-off selection technique for reliable beacon reception in VANETs |
| title_full_unstemmed | An effective back-off selection technique for reliable beacon reception in VANETs |
| title_short | An effective back-off selection technique for reliable beacon reception in VANETs |
| title_sort | effective back off selection technique for reliable beacon reception in vanets |
| topic | QA75 Electronic computers. Computer science |
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