| Presentation | 2016-03-04 Adaptive Initial Contention Window Control Scheme for Dense IEEE 802.11 Wireless LANs Ryohei Ito, Daiki Nobayashi, Takeshi Ikenaga, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Portable information devices with a wireless LAN interface, such as smartphones and tablet computers, have been spreading rapidly. Therefore, high density of stations instigate severe degradation of area throughput in wireless LANs. One factor is that an initial value of minimum contention windows size (CWmin) in existent Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) is small for the number of stations. To solve this problem, we proposed initial contention window control scheme depending on channel utilization and the number of stations that are transmitting a frame to the AP, and the scheme achieved improvement of communication performance in high-density station. However, when stations using conventional CSMA/CA and the scheme connect to the AP at same time, a performance of stations using the scheme decreases. In this paper, we propose the method that improves a performance of stations using the scheme by using a CTS frame. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless LAN / Media Access Control / CSMA/CA / Contention Window |
| Paper # | NS2015-250 |
| Date of Issue | 2016-02-25 (NS) |
| Conference Information | |
| Committee | NS / IN |
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| Conference Date | 2016/3/3(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Phoenix Seagaia Resort |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Chair | Atsushi Hiramatsu(NTT-AT) / Hidetsugu Kobayashi(NTT) |
| Vice Chair | Hideki Tode(Osaka Pref. Univ.) / Katsunori Yamaoka(Tokyo Inst. of Tech.) |
| Secretary | Hideki Tode(Univ. of Fukui) / Katsunori Yamaoka(NTT) |
| Assistant | Shohei Kamamura(NTT) / Yuichi Sudo(NTT) / Kunitake Kaneko(Keio Univ.) |
| 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) | Adaptive Initial Contention Window Control Scheme for Dense IEEE 802.11 Wireless LANs |
| Sub Title (in English) | Performance Improvement between Stations using CW Adjustment and CSMA/CA |
| Keyword(1) | Wireless LAN |
| Keyword(2) | Media Access Control |
| Keyword(3) | CSMA/CA |
| Keyword(4) | Contention Window |
| 1st Author's Name | Ryohei Ito |
| 1st Author's Affiliation | Kyushu Institute of Technology(KIT) |
| 2nd Author's Name | Daiki Nobayashi |
| 2nd Author's Affiliation | Kyushu Institute of Technology(KIT) |
| 3rd Author's Name | Takeshi Ikenaga |
| 3rd Author's Affiliation | Kyushu Institute of Technology(KIT) |
| Date | 2016-03-04 |
| Paper # | NS2015-250 |
| Volume (vol) | vol.115 |
| Number (no) | NS-483 |
| Page | pp.pp.477-482(NS), |
| #Pages | 6 |
| Date of Issue | 2016-02-25 (NS) |