Presentation 2009-05-21
Prioritization Control using CTS in Wireless LANs
Hiroshi MASUI, Shiro SAKATA, Shigeo SHIODA, Yumi HIRANO, Tutomu MURASE,
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Abstract(in English) IEEE 802.11e in which four classes are defined for prioritization was standardized as a QoS control scheme in a wireless LAN. It is, however, difficult to control "uplink" throughput of each class arbitrarily. Moreover, deployment cost is high because all terminals have to be modified in compliance with IEEE 802.11e specifications as well as the access point. A scheme called ROC (MAC Frame Receiving Opportunity Control) enabling a more fine-grained prioritization than IEEE 802.11e was proposed. ROC is implemented merely by modifyingthe access point. This report proposes a novel priority control scheme in which CTS (Clear-To-Send) is employed for giving more transmission opportunities to high-priority flow than low-priority flows. This scheme considerably achieves much higher utilizations than ROC, can be deployed merely by modifying the access point, and can control throughput almost arbitrarily. The proposed scheme is evaluated by simulation, result of which shows the advantage and effectiveness of the proposed scheme.
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Keyword(in English) QoS / Wireless LAN / MAC / IEEE 802.11 / IEEE 802.11e / CTS
Paper # IN2009-6
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Committee IN
Conference Date 2009/5/14(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Prioritization Control using CTS in Wireless LANs
Sub Title (in English)
Keyword(1) QoS
Keyword(2) Wireless LAN
Keyword(3) MAC
Keyword(4) IEEE 802.11
Keyword(5) IEEE 802.11e
Keyword(6) CTS
1st Author's Name Hiroshi MASUI
1st Author's Affiliation Graduate School of Advanced Integration Science, Chiba University()
2nd Author's Name Shiro SAKATA
2nd Author's Affiliation Graduate School of Advanced Integration Science, Chiba University
3rd Author's Name Shigeo SHIODA
3rd Author's Affiliation Graduate School of Advanced Enginieering, Chiba University
4th Author's Name Yumi HIRANO
4th Author's Affiliation NEC System Platforms Research Laboratories
5th Author's Name Tutomu MURASE
5th Author's Affiliation NEC System Platforms Research Laboratories
Date 2009-05-21
Paper # IN2009-6
Volume (vol) vol.109
Number (no) 37
Page pp.pp.-
#Pages 6
Date of Issue