{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,2,7]],"date-time":"2024-02-07T00:47:59Z","timestamp":1707266879335},"reference-count":26,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2024,2,3]],"date-time":"2024-02-03T00:00:00Z","timestamp":1706918400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Fujian Provincial Natural Science Foundation","award":["2023J01810"]},{"name":"Guidance Projects of FuJian Science and Technology Agency","award":["2022H0022"]},{"name":"Project of the Xiamen Science and Technology Bureau","award":["2022CXY0315","2022CXY0317"]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"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.<\/jats:p>","DOI":"10.3390\/s24030992","type":"journal-article","created":{"date-parts":[[2024,2,6]],"date-time":"2024-02-06T17:38:24Z","timestamp":1707241104000},"page":"992","source":"Crossref","is-referenced-by-count":0,"title":["A Novel Framed Slotted Aloha Medium Access Control Protocol Based on Capture Effect in Vehicular Ad Hoc Networks"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"http:\/\/orcid.org\/0009-0005-2825-9983","authenticated-orcid":false,"given":"Lianyou","family":"Lai","sequence":"first","affiliation":[{"name":"School of Ocean Information Engineering, Jimei University, Xiamen 361000, China"}]},{"ORCID":"http:\/\/orcid.org\/0009-0001-6581-1416","authenticated-orcid":false,"given":"Zhongzhe","family":"Song","sequence":"additional","affiliation":[{"name":"School of Ocean Information Engineering, Jimei University, Xiamen 361000, China"}]},{"ORCID":"http:\/\/orcid.org\/0009-0009-5306-4247","authenticated-orcid":false,"given":"Weijian","family":"Xu","sequence":"additional","affiliation":[{"name":"School of Ocean Information Engineering, Jimei University, Xiamen 361000, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,2,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"421","DOI":"10.1109\/TIT.2005.862098","article-title":"An Aloha protocol for multihop mobile wireless networks","volume":"52","author":"Baccelli","year":"2006","journal-title":"IEEE Trans. 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