Presentation 2018-09-07
Bistability of IEEE 802.11 DCF in Saturated/Non-saturated Boundary Region
Taiki Tubotani, Xiang Li, Shigeo Shioda,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) There exist two stable states of a IEEE-802.11-DCF-based wireless LAN (WLAN) in a region where the amount of frames transmitted from the terminals is almost equal to the processing capacity of the WLAN. Inthis work, we focused on this bistable phenomenon and make the following observations; the two stable states respectively correspond to the saturated and the unsaturated states, transitions between the bistable states can occur in some cases, and that the bistable phenomenon occurs also in inhomogeneous cases where the frame generation rate differs for each terminal. Furthermore, we show that the bistable phenomenon can be explained also in the analytical model (M/PH/1), in which the frame transmission time is represented by the phase distribution.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) IEEE 802.11 / DCF / bistability / saturated / nonsaturated / phase distribution
Paper # NS2018-101
Date of Issue 2018-08-30 (NS)

Conference Information
Committee IN / NS / CS
Conference Date 2018/9/6(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Research Institute of Electrical Communication, Tohoku Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Session Management (SIP/IMS), Interoperability/Standardization, NGN/NwGN/Future Networks, Cloud/Data Center Networks, SDN (OpenFlow, etc.)/NFV, IPv6, Machine Learning, etc.
Chair Takuji Kishida(NTT-AT) / Yoshikatsu Okazaki(NTT) / Hidenori Nakazato(Waseda Univ.)
Vice Chair Kenji Ishida(Hiroshima City Univ.) / Akihiro Nakao(Univ. of Tokyo) / Jun Terada(NTT)
Secretary Kenji Ishida(KDDI Research) / Akihiro Nakao(KDDI Research) / Jun Terada(NTT)
Assistant / Kenichi Kashibuchi(NTT) / Kazutaka Hara(NTT) / Kentaro Toyoda(Keio Univ.)

Paper Information
Registration To Technical Committee on Information Networks / Technical Committee on Network Systems / Technical Committee on Communication Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Bistability of IEEE 802.11 DCF in Saturated/Non-saturated Boundary Region
Sub Title (in English)
Keyword(1) IEEE 802.11
Keyword(2) DCF
Keyword(3) bistability
Keyword(4) saturated
Keyword(5) nonsaturated
Keyword(6) phase distribution
1st Author's Name Taiki Tubotani
1st Author's Affiliation Chiba University(Chiba Univ.)
2nd Author's Name Xiang Li
2nd Author's Affiliation Chiba University(Chiba Univ.)
3rd Author's Name Shigeo Shioda
3rd Author's Affiliation Chiba University(Chiba Univ.)
Date 2018-09-07
Paper # NS2018-101
Volume (vol) vol.118
Number (no) NS-206
Page pp.pp.77-82(NS),
#Pages 6
Date of Issue 2018-08-30 (NS)