| Presentation | 2021-03-05 Effect of Beamforming and Vehicle Material on Communication Quality in In-Vehicle Wireless Communication with IEEE802.11ad Takumi Shiohara, Takayuki Nishio, Tutomu Murase, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The effect of interference on in-vehicle wireless LAN communication with IEEE 802.11ad (hereinafter 802.11ad) for in-vehicle wireless harness is investigated in communication quality. Two cases of interferences regarding both with beamforming signal strength and with penetration intensity of vehicle body materials from surrounded vehicles are considered in the evaluation. This is because communication delay, which is determined by the number of retransmissions and backoff time, increases when the amount of such interference increases. Beamforming strengthens radio wave in a specific direction which an antenna is facing. Therefore, if beams from out of vehicle face own vehicle, interference strength is strong and communication quality decreases. FRP (Fiber Reinforced Plastics), which is recently using for a vehicle body, can penetrate the radio wave more than metal. In order to understand the impact of these factors of interference variation on communication quality, we evaluated communication quality using a model in which vehicles are densely put and cause severe interference. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | IEEE802.11ad / Wireless Harness / In-Vehicle Communication / Beamforming / Interference / Delay |
| Paper # | IN2020-79 |
| Date of Issue | 2021-02-25 (IN) |
| Conference Information | |
| Committee | IN / NS |
|---|---|
| Conference Date | 2021/3/4(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Chair | Kenji Ishida(Hiroshima City Univ.) / Akihiro Nakao(Univ. of Tokyo) |
| Vice Chair | Kunio Hato(Internet Multifeed) / Tetsuya Oishi(NTT) |
| Secretary | Kunio Hato(Hiroshima City Univ.) / Tetsuya Oishi(KDDI Research) |
| Assistant | / Shinya Kawano(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Information Networks / Technical Committee on Network Systems |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of Beamforming and Vehicle Material on Communication Quality in In-Vehicle Wireless Communication with IEEE802.11ad |
| Sub Title (in English) | |
| Keyword(1) | IEEE802.11ad |
| Keyword(2) | Wireless Harness |
| Keyword(3) | In-Vehicle Communication |
| Keyword(4) | Beamforming |
| Keyword(5) | Interference |
| Keyword(6) | Delay |
| 1st Author's Name | Takumi Shiohara |
| 1st Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 2nd Author's Name | Takayuki Nishio |
| 2nd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech.) |
| 3rd Author's Name | Tutomu Murase |
| 3rd Author's Affiliation | Nagoya University(Nagoya Univ.) |
| Date | 2021-03-05 |
| Paper # | IN2020-79 |
| Volume (vol) | vol.120 |
| Number (no) | IN-414 |
| Page | pp.pp.150-155(IN), |
| #Pages | 6 |
| Date of Issue | 2021-02-25 (IN) |