| Presentation | 2009-04-17 Assigning Fair Bandwidth to Each Terminal by Adjusting Contention Window Size in Access Point Toshihiro YOSHIOKA, Satoshi OHZAHATA, Konosuke KAWASHIMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, wireless LANs have been used widely. However, there are unfairness problems in wireless LANs, where a small number of stations (STA) attain large throughput, but other STAs hardly attain throughput. This unfairness problem occurs between an upload flow and a download flow because access point (AP) and STAs have the same transmission opportunity by CSMA/CA control. To solve this problem, we propose a cross layer control for per-station fairness by improving AP. The proposed method combining a queuing method of Deficit Round-Robin (DRR) in MAC layer and the dynamic contention window control in MAC layer. The proposed method used only MAC layer information for queuing between IP and MAC layer and controlling the dynamic contention window size. We evaluated the proposed method by using computer simulation, and show the effectiveness of the proposed method. The proposed method acheived fairness in throughput per-station which have multiple UDP and TCP flows in the simulation experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | fairness / WLAN / IEEE802.11 |
| Paper # | NS2009-12 |
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| Conference Information | |
| Committee | NS |
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| Conference Date | 2009/4/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Network Systems(NS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Assigning Fair Bandwidth to Each Terminal by Adjusting Contention Window Size in Access Point |
| Sub Title (in English) | |
| Keyword(1) | fairness |
| Keyword(2) | WLAN |
| Keyword(3) | IEEE802.11 |
| 1st Author's Name | Toshihiro YOSHIOKA |
| 1st Author's Affiliation | Tokyo University of Agriculture and Technology() |
| 2nd Author's Name | Satoshi OHZAHATA |
| 2nd Author's Affiliation | Tokyo University of Agriculture and Technology |
| 3rd Author's Name | Konosuke KAWASHIMA |
| 3rd Author's Affiliation | Tokyo University of Agriculture and Technology |
| Date | 2009-04-17 |
| Paper # | NS2009-12 |
| Volume (vol) | vol.109 |
| Number (no) | 3 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |