| Presentation | 2017-03-03 Frame Relaying for High Speed Vehicles and Emergency Vehicles in Crash Warning Application in V2X Communication Takeshi Hirai, Tutomu Murase, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Crash Warning Application (CWA) in Vehicle-to-Everything (V2X) communication by using IEEE802.11p is one of promising applications for smart society. High-speed cars and emergency vehicles are afraid to fail to meet CWA requirements because they must recognize other vehicles and be recognized by other vehicles in very far away. This occurs due to weak receiving signals by attenuation. This can be generally solved by relaying IEEE802.11p frames containing CWA information toward the destination. However, the relaying which yields additional frames may contribute to worsen frame congestion. To solve this problem, we propose an adaptive relay method using relay probability with which a frame is relayed. Although the appropriate values of the probability should be determined for a context of each vehicle, a good example method is shown for evaluating effectiveness of the proposal. The method which employs a function of distances of vehicles for the probability showed that the maximum allowed number of terminals for CWA could be 1.6 times as much as that without relay. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | V2V / V2P / DSRC / IEEE802.11p / Crash Warning / Congestion Control |
| Paper # | IN2016-132 |
| Date of Issue | 2017-02-23 (IN) |
| Conference Information | |
| Committee | NS / IN |
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| Conference Date | 2017/3/2(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | OKINAWA ZANPAMISAKI ROYAL HOTEL |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Chair | Hideki Tode(Osaka Pref. Univ.) / Katsunori Yamaoka(Tokyo Inst. of Tech.) |
| Vice Chair | Yoshikatsu Okazaki(NTT) / Takuji Kishida(NTT) |
| Secretary | Yoshikatsu Okazaki(Kyushu Inst. of Tech.) / Takuji Kishida(NTT) |
| Assistant | Shohei Kamamura(NTT) / Kunitake Kaneko(Keio Univ.) / Takashi Natsume(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Network Systems / Technical Committee on Information Networks |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Frame Relaying for High Speed Vehicles and Emergency Vehicles in Crash Warning Application in V2X Communication |
| Sub Title (in English) | |
| Keyword(1) | V2V |
| Keyword(2) | V2P |
| Keyword(3) | DSRC |
| Keyword(4) | IEEE802.11p |
| Keyword(5) | Crash Warning |
| Keyword(6) | Congestion Control |
| 1st Author's Name | Takeshi Hirai |
| 1st Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 2nd Author's Name | Tutomu Murase |
| 2nd Author's Affiliation | Nagoya University(Nagoya Univ.) |
| Date | 2017-03-03 |
| Paper # | IN2016-132 |
| Volume (vol) | vol.116 |
| Number (no) | IN-485 |
| Page | pp.pp.211-216(IN), |
| #Pages | 6 |
| Date of Issue | 2017-02-23 (IN) |