{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,28]],"date-time":"2025-10-28T10:44:30Z","timestamp":1761648270516,"version":"build-2065373602"},"reference-count":41,"publisher":"Institution of Engineering and Technology (IET)","issue":"16","license":[{"start":{"date-parts":[[2020,9,15]],"date-time":"2020-09-15T00:00:00Z","timestamp":1600128000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61461053"],"award-info":[{"award-number":["61461053"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100007839","name":"Yunnan University","doi-asserted-by":"publisher","award":["XT412004"],"award-info":[{"award-number":["XT412004"]}],"id":[{"id":"10.13039\/501100007839","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["ietresearch.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["IET Communications"],"published-print":{"date-parts":[[2020,10]]},"abstract":"<jats:p>\n                    Contention\u2010based carrier sense multiple access (CSMA) and contention\u2010free time division multiple access (TDMA) protocol are two typical access protocols of media access control in vehicular\n                    <jats:italic>ad hoc<\/jats:italic>\n                    network (VANET). They all show their unique advantages under specific conditions. TDMA has high transmission reliability, CSMA has a low transmission delay in the communication environment with low packet arrival rate. However, when the arrival rate of information packets increases rapidly, the throughput of CSMA will decrease rapidly and approach zero, which is not suitable for data transmission in the communication environment with a high arrival rate of information packets; while data transmission through a single TDMA protocol will cause high system overhead due to strict synchronous information. Aiming at the defects of the two protocols and the multi\u2010channel communication environment, this study proposes the optimised protocol model multi\u2010priority time division\u2010CSMA (MPTD\u2010CSMA). The optimised protocol model not only ensures the reliability of data communication but also reduces the transmission delay of the system. At the same time, the multi\u2010priority mechanism is added to increase the channel utilisation of the protocol model.\n                  <\/jats:p>","DOI":"10.1049\/iet-com.2019.1125","type":"journal-article","created":{"date-parts":[[2020,9,16]],"date-time":"2020-09-16T22:41:59Z","timestamp":1600296119000},"page":"2769-2779","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Hardware implementation and performance analysis of MPTD\u2010CSMA protocol based on field\u2010programmable gate array in VANET"],"prefix":"10.1049","volume":"14","author":[{"given":"Hongwei","family":"Ding","sequence":"first","affiliation":[{"name":"School of information, Yunnan University Kunming 650091 People's Republic of China"}]},{"given":"Xu","family":"Lu","sequence":"additional","affiliation":[{"name":"School of information, Yunnan University Kunming 650091 People's Republic of China"}]},{"given":"Bo","family":"Li","sequence":"additional","affiliation":[{"name":"School of information, Yunnan University Kunming 650091 People's Republic of China"}]},{"given":"Liqing","family":"Wang","sequence":"additional","affiliation":[{"name":"School of information, Yunnan University Kunming 650091 People's Republic of China"}]},{"given":"Liyong","family":"Bao","sequence":"additional","affiliation":[{"name":"School of information, Yunnan University Kunming 650091 People's Republic of China"}]},{"given":"Zhijun","family":"Yang","sequence":"additional","affiliation":[{"name":"School of information, Yunnan University Kunming 650091 People's Republic of China"}]},{"given":"Qianlin","family":"Liu","sequence":"additional","affiliation":[{"name":"School of information, Yunnan University Kunming 650091 People's Republic of China"}]}],"member":"265","published-online":{"date-parts":[[2020,9,15]]},"reference":[{"issue":"1","key":"e_1_2_9_2_1","first-page":"51","article-title":"Vehicle\u2010borne self\u2010organizing network video streaming media to assist in downloading research","volume":"40","author":"Chen L.","year":"2019","journal-title":"J. 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