Presentation 2004/4/16
A Priority Control Method for Wireless Multi-hop Access Using IEEE802.11 DCF Mechanism
Kenichi KAWAMURA, Yasuhiko INOUE, Shuji KUBOTA,
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Abstract(in English) Multi-hop communication systems have been widely studied and many of them are based on the IEEE802.11 WLAN system. This paper explains the problem of a throughput degradation of a relay station when IEEE802.11 DCF is adopted in multi-hop communications. The relay stations loose some of their capacity compared to the stations that are not relaying data of other stations. Because all stations, under the CSMA/CA protocol, will have equal transmission opportunity, the relay stations have to send packets from other terminals. In this paper, we propose an autonomous priority control method that changes the contention window size depending on the number of relay stations and the number of hops to ensure that relay stations are offered the same transmission capacity as regular stations in the service area. Then its performance is evaluated by computer simulations.
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Keyword(in English) IEEE802.11 / CSMA/CA / multi-hop / priority control
Paper # RCS2004-32,CQ2004-32
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Committee CQ
Conference Date 2004/4/16(1days)
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Registration To Communication Quality (CQ)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Priority Control Method for Wireless Multi-hop Access Using IEEE802.11 DCF Mechanism
Sub Title (in English)
Keyword(1) IEEE802.11
Keyword(2) CSMA/CA
Keyword(3) multi-hop
Keyword(4) priority control
1st Author's Name Kenichi KAWAMURA
1st Author's Affiliation NTT Access Network Service Systems Laboratories, NTT Corporation()
2nd Author's Name Yasuhiko INOUE
2nd Author's Affiliation NTT Access Network Service Systems Laboratories, NTT Corporation
3rd Author's Name Shuji KUBOTA
3rd Author's Affiliation NTT Access Network Service Systems Laboratories, NTT Corporation
Date 2004/4/16
Paper # RCS2004-32,CQ2004-32
Volume (vol) vol.104
Number (no) 22
Page pp.pp.-
#Pages 6
Date of Issue