Presentation 2018-06-01
Mean Field Approximation Analysis and Bistability of IEEE 802.11 DCF in a Saturated/Non-saturated Boundary Region
Xiang Li, Shigeo Shioda,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Using the analysis model of IEEE 802.11 DCF with mean field approximation, we show that the wireless LAN (WLAN) based on the IEEE 802.11 DCF has two stable equilibrium states when the offered load is approximately equal to the capacity of the WLAN. The existence of the bistable state is closely related to the queue of frames waiting for transmission within a terminal. A terminal in one of the two stable states has few frames and the one in the other stable state has a long queue of frames waiting for transmission. The existence of the bistable state becomes more prominent as the number of terminals increases. The existence of the bistable state predicted by the analytical model is also confirmed in the simulation.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) IEEE 802.11 / DCF / bistability / mean field approximation / saturated / nonsaturated
Paper # CQ2018-25
Date of Issue 2018-05-24 (CQ)

Conference Information
Committee CQ
Conference Date 2018/5/31(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Chiba Univ. Nishi-Chiba Campus, academic link center
Topics (in Japanese) (See Japanese page)
Topics (in English) Efficiency of Wireless Communications, Wireless Communication Quality, MIMO/Diversity/Multiplexing Techniques, Radio Resource Management, Cross-Layer Techniques, etc.
Chair Takanori Hayashi(Hiroshima Inst. of Tech.)
Vice Chair Hideyuki Shimonishi(NEC) / Jun Okamoto(NTT)
Secretary Hideyuki Shimonishi(NTT) / Jun Okamoto(Keio Univ.)
Assistant Kenko Ota(Nippon Inst. of Tech.) / Norihiro Fukumoto(KDDI Research Inc.) / Ryo Yamamoto(UEC)

Paper Information
Registration To Technical Committee on Communication Quality
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Mean Field Approximation Analysis and Bistability of IEEE 802.11 DCF in a Saturated/Non-saturated Boundary Region
Sub Title (in English)
Keyword(1) IEEE 802.11
Keyword(2) DCF
Keyword(3) bistability
Keyword(4) mean field approximation
Keyword(5) saturated
Keyword(6) nonsaturated
1st Author's Name Xiang Li
1st Author's Affiliation Chiba University(Chiba Univ.)
2nd Author's Name Shigeo Shioda
2nd Author's Affiliation Chiba University(Chiba Univ.)
Date 2018-06-01
Paper # CQ2018-25
Volume (vol) vol.118
Number (no) CQ-71
Page pp.pp.43-48(CQ),
#Pages 6
Date of Issue 2018-05-24 (CQ)