| Presentation | 2022-09-16 A study on contention window size and carrier sense level for inter vehicle communication systems Yuma Sato, Masahiro Fujii, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | ARIB STD T-109 has been established as the ITS wireless communication standard in Japan, and CSMA/CA is used as the access control method. In CSMA/CA, a uniform random number in the range from 0 to CWS is used to determine the backoff time, and ARIB STD T-109 defines the contention window size CWS to be 63. The carrier sense level, which is a threshold for determining the channel state, is set at -53 dBm. Although these functions allow CSMA/CA to avoid and detect collisions in transmitted frames, they do not completely avoid the occurrence of frame collisions due to remaining backoff time matching and hidden terminal problems. In this paper, we evaluate communication performances by computer simulations with the parameters of the contention window size to avoid the match of residual backoff time and the carrier sense level to avoid the hidden terminal problem. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Inter-Vehicle Communication / CSMA/CA / Contention window size / Carrier sense level |
| Paper # | ITS2022-8 |
| Date of Issue | 2022-09-09 (ITS) |
| Conference Information | |
| Committee | ITS / IEE-ITS / IPSJ-ITS |
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| Conference Date | 2022/9/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Waim Meeting Room |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Masahiro Fujii(Utsunomiya Univ.) |
| Vice Chair | Kohei Ohno(Meiji Univ.) / Naohisa Hashimoto(AIST) |
| Secretary | Kohei Ohno(Toyama Prefectural Univ.) / Naohisa Hashimoto(NIT, Tsuruoka College) |
| Assistant | Msataka Imao(Mitsubishi Electric) / Taishi Swabe(NAIST) / Keiji Jimi(Gunma Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Intelligent Transport Systems Technology / Technical Meeting on Intelligent Transport Systems / Special Interest Group on Intelligent Transport Systems and Smart Community |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on contention window size and carrier sense level for inter vehicle communication systems |
| Sub Title (in English) | |
| Keyword(1) | Inter-Vehicle Communication |
| Keyword(2) | CSMA/CA |
| Keyword(3) | Contention window size |
| Keyword(4) | Carrier sense level |
| 1st Author's Name | Yuma Sato |
| 1st Author's Affiliation | Utsunomiya University(Utsunomiya Univ.) |
| 2nd Author's Name | Masahiro Fujii |
| 2nd Author's Affiliation | Utsunomiya University(Utsunomiya Univ.) |
| Date | 2022-09-16 |
| Paper # | ITS2022-8 |
| Volume (vol) | vol.122 |
| Number (no) | ITS-190 |
| Page | pp.pp.12-16(ITS), |
| #Pages | 5 |
| Date of Issue | 2022-09-09 (ITS) |