| Presentation | 2015-07-30 [Poster Presentation] 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. Because smaller CWmin is not appropriate for high-density station, frame collisions attempt for sending of a frame and communication performance per a station decrease.In this paper, we assume that many stations are connected to a single access point (AP) and propose the media access control method for high-density station. In our proposed method, an AP measures channel utilization and the number of stations that are transmitting a frame to the AP at the time periodically.The AP switches a value of CWmin based on these parameters, and the AP informs value of new CWmin to stations using a beacon. We performed computer simulations in order to verify the performance of our scheme.The results show us that our proposed method outperforms the conventional CSMA/CA over wireless LAN in high-density station in terms of throughput. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless LAN / Media Access Control / CSMA/CA / Contention Window |
| Paper # | RCC2015-20,NS2015-40,RCS2015-103,SR2015-21,ASN2015-30 |
| Date of Issue | 2015-07-22 (RCC, RCS, SR, ASN), 2015-07-23 (NS) |
| Conference Information | |
| Committee | RCC / ASN / RCS / NS / SR |
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| Conference Date | 2015/7/29(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | JA Naganoken Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Distributed Network, M2M: Machine-to-Machine, D2D (Device-to-Device)，etc. |
| Chair | Masaaki Katayama(Nagoya Univ.) / Hiroshi Tohjo(NTT) / Makoto Taromaru(Fukuoka Univ.) / Atsushi Hiramatsu(NTT-AT) / Takeo Fujii(Univ. of Electro-Comm.) |
| Vice Chair | Shinsuke Hara(Osaka City Univ.) / Ryu Miura(NICT) / Hiroo Sekiya(Chiba Univ.) / Hiraku Okada(Nagoya Univ.) / Kiyohito Yoshihara(KDDI R&D Labs.) / Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Hideki Tode(Osaka Pref. Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) |
| Secretary | Shinsuke Hara(Kyoto Univ.) / Ryu Miura(Hokkaido Univ.) / Hiroo Sekiya(Kanagawa Inst. of Tech.) / Hiraku Okada(NTT) / Kiyohito Yoshihara(Mitsubishi Electric) / Hidekazu Murata(NTT DoCoMo) / Satoshi Denno(Univ. of Fukui) / Yukitoshi Sanada(NTT) / Hideki Tode(Shinshu Univ.) / Kenta Umebayashi(NICT) / Masayuki Ariyoshi |
| Assistant | Koji Ishii(Kagawa Univ.) / Kentaro Kobayashi(Nagoya Univ.) / Yuichi Igarashi(Hitachi) / Katsuhiro Naito(Aichi Inst. of Tech.) / Kiyohiko Hattori(NICT) / Hiroshi Fujita(Fujitsu Labs.) / Takuro Yonezawa(Keio Univ.) / Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Shohei Kamamura(NTT) / Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Reliable Communication and Control / Technical Committee on Ambient intelligence and Sensor Networks / Technical Committee on Radio Communication Systems / Technical Committee on Network Systems / Technical Committee on Smart Radio |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Adaptive Initial Contention Window Control Scheme for Dense IEEE 802.11 Wireless LANs |
| Sub Title (in English) | |
| 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 | 2015-07-30 |
| Paper # | RCC2015-20,NS2015-40,RCS2015-103,SR2015-21,ASN2015-30 |
| Volume (vol) | vol.115 |
| Number (no) | RCC-158,NS-159,RCS-160,SR-161,ASN-162 |
| Page | pp.pp.15-20(RCC), pp.19-24(NS), pp.17-22(RCS), pp.33-38(SR), pp.55-60(ASN), |
| #Pages | 6 |
| Date of Issue | 2015-07-22 (RCC, RCS, SR, ASN), 2015-07-23 (NS) |