A Novel Framed Slotted Aloha Medium Access Control Protocol Based on Capture Effect in Vehicular Ad Hoc Networks
The capture effect is a frequently observed phenomenon in vehicular ad hoc networks (VANETs) communication. When conflicts arise during time slot access, failure to access does not necessarily occur; instead, successful access may still be achieved. The capture effect can enhance the likelihood of m...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/3/992 |
| _version_ | 1797318199239245824 |
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| author | Lianyou Lai Zhongzhe Song Weijian Xu |
| author_facet | Lianyou Lai Zhongzhe Song Weijian Xu |
| author_sort | Lianyou Lai |
| collection | DOAJ |
| description | The capture effect is a frequently observed phenomenon in vehicular ad hoc networks (VANETs) communication. When conflicts arise during time slot access, failure to access does not necessarily occur; instead, successful access may still be achieved. The capture effect can enhance the likelihood of multiple access and improve communication efficiency. The security of VANETs communication is undoubtedly the primary concern. One crucial approach to enhance security involves the design of an efficient and reliable medium access control (MAC) protocol. Taking into account both aspects, we propose a novel framed slotted Aloha (FSA) MAC protocol model. Firstly, we derive the closed-form expression for the capture probability in the Rician fading channel in this paper. Subsequently, we analyze how the number of vehicles and time slots influence the success probability of vehicle access channels as well as examine the impact of the capture effect on this success probability. Then, under constraints regarding vehicle access channel success probability, we derive optimal values for slot numbers, access times, and transmission power while proposing a comprehensive implementation method to ensure high access channel success probabilities. We verify both theoretical derivations and proposed methods through simulation experiments. |
| first_indexed | 2024-03-08T03:48:56Z |
| format | Article |
| id | doaj.art-907c3f38bdcb430fa05fc813d7a4dc82 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-08T03:48:56Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-907c3f38bdcb430fa05fc813d7a4dc822024-02-09T15:22:30ZengMDPI AGSensors1424-82202024-02-0124399210.3390/s24030992A Novel Framed Slotted Aloha Medium Access Control Protocol Based on Capture Effect in Vehicular Ad Hoc NetworksLianyou Lai0Zhongzhe Song1Weijian Xu2School of Ocean Information Engineering, Jimei University, Xiamen 361000, ChinaSchool of Ocean Information Engineering, Jimei University, Xiamen 361000, ChinaSchool of Ocean Information Engineering, Jimei University, Xiamen 361000, ChinaThe capture effect is a frequently observed phenomenon in vehicular ad hoc networks (VANETs) communication. When conflicts arise during time slot access, failure to access does not necessarily occur; instead, successful access may still be achieved. The capture effect can enhance the likelihood of multiple access and improve communication efficiency. The security of VANETs communication is undoubtedly the primary concern. One crucial approach to enhance security involves the design of an efficient and reliable medium access control (MAC) protocol. Taking into account both aspects, we propose a novel framed slotted Aloha (FSA) MAC protocol model. Firstly, we derive the closed-form expression for the capture probability in the Rician fading channel in this paper. Subsequently, we analyze how the number of vehicles and time slots influence the success probability of vehicle access channels as well as examine the impact of the capture effect on this success probability. Then, under constraints regarding vehicle access channel success probability, we derive optimal values for slot numbers, access times, and transmission power while proposing a comprehensive implementation method to ensure high access channel success probabilities. We verify both theoretical derivations and proposed methods through simulation experiments.https://www.mdpi.com/1424-8220/24/3/992FSAslotted Alohacapture effectRicianvehicular ad hoc networks (VANETs)medium access control (MAC) |
| spellingShingle | Lianyou Lai Zhongzhe Song Weijian Xu A Novel Framed Slotted Aloha Medium Access Control Protocol Based on Capture Effect in Vehicular Ad Hoc Networks Sensors FSA slotted Aloha capture effect Rician vehicular ad hoc networks (VANETs) medium access control (MAC) |
| title | A Novel Framed Slotted Aloha Medium Access Control Protocol Based on Capture Effect in Vehicular Ad Hoc Networks |
| title_full | A Novel Framed Slotted Aloha Medium Access Control Protocol Based on Capture Effect in Vehicular Ad Hoc Networks |
| title_fullStr | A Novel Framed Slotted Aloha Medium Access Control Protocol Based on Capture Effect in Vehicular Ad Hoc Networks |
| title_full_unstemmed | A Novel Framed Slotted Aloha Medium Access Control Protocol Based on Capture Effect in Vehicular Ad Hoc Networks |
| title_short | A Novel Framed Slotted Aloha Medium Access Control Protocol Based on Capture Effect in Vehicular Ad Hoc Networks |
| title_sort | novel framed slotted aloha medium access control protocol based on capture effect in vehicular ad hoc networks |
| topic | FSA slotted Aloha capture effect Rician vehicular ad hoc networks (VANETs) medium access control (MAC) |
| url | https://www.mdpi.com/1424-8220/24/3/992 |
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