| Presentation | 2020-01-16 An access method using fixed contention window in wireless LANs Yamato Watanabe, Hroshi Inai, Hideaki Wakabayashi, Tsuyoshi Arai, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In Wireless LANs, DCF is adopted as a standard access method. In DCF, each node has a random waiting time within the range [0,CW] slots in order to avoid collision, thereby varying the frame transmission timing. Furthermore, when a collision occurs, the collision is avoided by doubling the CW. If the transmission is successful, CW is returned to the initial value. However, by immediately resetting CW to the initial value, when there are many nodes, collisions are repeated and resources cannot be used effectively. Therefore, in this paper, an appropriate CW is determined according to the network condition such as the number of nodes, and an access method that does not change the CW even when a collision occurs is proposed. We compared the total throughput of the proposed method and DCF by simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless LANs / DCF / Contention window / Back-off window / Throughput |
| Paper # | CQ2019-115 |
| Date of Issue | 2020-01-09 (CQ) |
| Conference Information | |
| Committee | CQ |
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| Conference Date | 2020/1/16(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NHK Science & Technology Research Laboratories |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | AR/VR, Broadcasting Service, Video/Voice Services Quality, High Realistic, User Behavior/Psychology, User Experience, Media Quality, Network Quality and QoS Control, Networks and Communications at Disaster, User Behavior, Machine Learning, etc. |
| Chair | Hideyuki Shimonishi(NEC) |
| Vice Chair | Jun Okamoto(NTT) / Takefumi Hiraguri(Nippon Inst. of Tech.) |
| Secretary | Jun Okamoto(Nippon Inst. of Tech.) / Takefumi Hiraguri(Doshisha Univ.) |
| Assistant | Chikara Sasaki(KDDI Research) / Yoshiaki Nishikawa(NEC) / Takuto Kimura(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Communication Quality |
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| Language | JPN-ONLY |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An access method using fixed contention window in wireless LANs |
| Sub Title (in English) | |
| Keyword(1) | Wireless LANs |
| Keyword(2) | DCF |
| Keyword(3) | Contention window |
| Keyword(4) | Back-off window |
| Keyword(5) | Throughput |
| 1st Author's Name | Yamato Watanabe |
| 1st Author's Affiliation | Okayama Prefectural University Graduate School(Okayama Pref. Univ.) |
| 2nd Author's Name | Hroshi Inai |
| 2nd Author's Affiliation | Okayama Prefectural University(Okayama Pref. Univ.) |
| 3rd Author's Name | Hideaki Wakabayashi |
| 3rd Author's Affiliation | Okayama Prefectural University(Okayama Pref. Univ.) |
| 4th Author's Name | Tsuyoshi Arai |
| 4th Author's Affiliation | Okayama Prefectural University(Okayama Pref. Univ.) |
| Date | 2020-01-16 |
| Paper # | CQ2019-115 |
| Volume (vol) | vol.119 |
| Number (no) | CQ-367 |
| Page | pp.pp.47-50(CQ), |
| #Pages | 4 |
| Date of Issue | 2020-01-09 (CQ) |