| Presentation | 2015-07-07 Evaluation of optimized CW scheme in unsaturated traffic network environment Yoshiaki Morino, Takefumi Hiraguri, Hideaki Yoshino, Kentaro Nishimori, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Wireless LAN device/terminal are increased, causes congestion in wireless band. In addition, congestion causes the decrease in the communication quality. The carrier sense multiple access with collision avoidance (CSMA/CA) scheme is access control in IEEE802.11 standard of wireless LANs. CSMA/CA scheme is avoided packet collisions utilizing random transmission standby time called binary backoff algorithm, and random time is selected from the range of contention window (CW) size. But, selected CW size is not optimal in the number of terminals. We previous study, we calculated optimized CW size for number of contention terminals in congestion network environment. We confirmed effectiveness utilizing theoretical analysis and computer simulation of proposed scheme. In this paper, we evaluated the throughput characteristics in unsaturated traffic network environment. And, we proposal dynamically control scheme of optimized CW size for number of contention terminals on access point. We report able to confirmed the effectiveness of the proposed scheme in unsaturated traffic network environment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless LAN / Collision avoidance / Optimaized CW / Transmission efficiency |
| Paper # | CQ2015-33 |
| Date of Issue | 2015-06-29 (CQ) |
| Conference Information | |
| Committee | CQ |
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| Conference Date | 2015/7/6(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nara Institute of Science and Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Cooperative networks, Cooperative Mechanism (Gamification, Pricing, Distributed Computing, P2P,DTN, M2M, Iot), General |
| Chair | Kyoko Yamori(Asahi Univ.) |
| Vice Chair | Takanori Hayashi(NTT) / Hideyuki Shimonishi(NEC) |
| Secretary | Takanori Hayashi(NEC) / Hideyuki Shimonishi(Osaka Univ.) |
| Assistant | Masahiro Yamamoto(OKI) / Bo GU(Waseda Univ.) / Hirantha Abeysekera(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Communication Quality |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of optimized CW scheme in unsaturated traffic network environment |
| Sub Title (in English) | |
| Keyword(1) | Wireless LAN |
| Keyword(2) | Collision avoidance |
| Keyword(3) | Optimaized CW |
| Keyword(4) | Transmission efficiency |
| 1st Author's Name | Yoshiaki Morino |
| 1st Author's Affiliation | Nippon Institute of Technology(NIT) |
| 2nd Author's Name | Takefumi Hiraguri |
| 2nd Author's Affiliation | Nippon Institute of Technology(NIT) |
| 3rd Author's Name | Hideaki Yoshino |
| 3rd Author's Affiliation | Nippon Institute of Technology(NIT) |
| 4th Author's Name | Kentaro Nishimori |
| 4th Author's Affiliation | Niigata University(Niigata Univ.) |
| Date | 2015-07-07 |
| Paper # | CQ2015-33 |
| Volume (vol) | vol.115 |
| Number (no) | CQ-130 |
| Page | pp.pp.69-73(CQ), |
| #Pages | 5 |
| Date of Issue | 2015-06-29 (CQ) |