Presentation 2020-06-29
A Study on Decision of Guard Station using Virtual Dedicated Channel Scheme for Private WLAN Systems
Takeshi Yamada, Shinichi Miyamoto,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) To establish a virtual dedicated channel for area owner's wireless local area network (WLAN) systems, a virtual dedicated channel scheme using periodic medium reservation has been proposed. In the scheme, guard stations spatially distributed in the private space send network allocation vector (NAV) frames periodically. Since the periodic NAV frames notify the medium reservation period to the visitor's BSS (Basic Service Set), the visitor's BSSs that overhear NAV frames defer the access to the medium, and the area owner's BSS can occupy a certain amount of radio resources. In the conventional scheme, the guard stations notify the medium reservation so as to create the virtual dedicated channel as wide as possible. However, when the required area for ensure the performance of area owner's BSS is narrower than the private space, the excessive medium reservation will degrade the spatial spectrum efficiency. As a countermeasure against this problem, this paper proposes a dynamic medium reservation area control scheme. In the proposed scheme, according to the position of visitor's BSS,the guard stations sending the NAV frames are dynamically controlled. Since the limited numbers of guard stations operate to notify NAV frames,the spectrum efficiency will be improved by the proposed scheme.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) wireless LAN / unlicensed spectrum / CSMA/CA / virtual dedicated channel / dynamic control of NAV notification
Paper # SRW2020-7
Date of Issue 2020-06-22 (SRW)

Conference Information
Committee SRW
Conference Date 2020/6/29(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) WLAN, WPAN, Ad-hoc, mmWave, etc.
Chair Satoshi Denno(Okayama Univ.)
Vice Chair Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Inst. of Tech.) / Hanako Noda(Anritsu)
Secretary Keiichi Mizutani(Niigata Univ.) / Kentaro Saito(NTT) / Hanako Noda
Assistant Akihito Noda(Nanzan Univ.) / Masaaki Fuse(Anritsu)

Paper Information
Registration To Technical Committee on Short Range Wireless Communications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Decision of Guard Station using Virtual Dedicated Channel Scheme for Private WLAN Systems
Sub Title (in English)
Keyword(1) wireless LAN
Keyword(2) unlicensed spectrum
Keyword(3) CSMA/CA
Keyword(4) virtual dedicated channel
Keyword(5) dynamic control of NAV notification
1st Author's Name Takeshi Yamada
1st Author's Affiliation Wakayama University(Wakayama Univ.)
2nd Author's Name Shinichi Miyamoto
2nd Author's Affiliation Wakayama University(Wakayama Univ.)
Date 2020-06-29
Paper # SRW2020-7
Volume (vol) vol.120
Number (no) SRW-81
Page pp.pp.17-22(SRW),
#Pages 6
Date of Issue 2020-06-22 (SRW)