Presentation 2018-09-03
Passive QoS Estimation Method for a Large-Scale Wi-Fi Network and Its Experimental Evaluation
Naoki Ishikawa, Yasuhiro Ohishi, Tsutomu Nakayama, Kaori Maeda,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this report, we investigate the QoS estimation accuracy of a passive-monitoring-based frame count method in a large-scale Wi-Fi network. The null function data frame (NFDF) is a fixed-length IEEE 802.11 frame and is periodically emitted from a user equipment. Here, the NFDF-based QoS estimation method has been proposed in the literature. We implemented this method in an access point, and evaluated its performance both in an ideal environment and a large-scale conference. Through the real-world measurements in the ideal environment, we obtained the correlation coefficient of 0.65 between the NFDF retry ratio and the corresponding frame error rate. Furthermore, the correlation coefficient was 0.56 at the large-scale conference, which justified the efficacy of the NFDF counting method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) IEEE 802.11 / Wi-Fi / passive estimation / quality of servic / frame error rate / large-scale network
Paper # IA2018-17
Date of Issue 2018-08-27 (IA)

Conference Information
Committee IA
Conference Date 2018/9/3(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Hokkaido Univ. Conference Hall
Topics (in Japanese) (See Japanese page)
Topics (in English) Internet Operation and Management, etc.
Chair Katsuyoshi Iida(Hokkaido Univ.)
Vice Chair Rei Atarashi(IIJ) / Hiroyuki Osaki(Kwansei Gakuin Univ.) / Toru Kondo(Hiroshima Univ.)
Secretary Rei Atarashi(Tokyo Metropolitan Univ.) / Hiroyuki Osaki(TOYOTA-IT) / Toru Kondo(NEC)
Assistant Kenji Ohira(Tokushima Univ.) / Ryohei Banno(Tokyo Inst. of Tech.)

Paper Information
Registration To Technical Committee on Internet Architecture
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Passive QoS Estimation Method for a Large-Scale Wi-Fi Network and Its Experimental Evaluation
Sub Title (in English)
Keyword(1) IEEE 802.11
Keyword(2) Wi-Fi
Keyword(3) passive estimation
Keyword(4) quality of servic
Keyword(5) frame error rate
Keyword(6) large-scale network
1st Author's Name Naoki Ishikawa
1st Author's Affiliation Hiroshima City University(Hiroshima City Univ.)
2nd Author's Name Yasuhiro Ohishi
2nd Author's Affiliation Internet Initiative Japan Inc.(IIJ)
3rd Author's Name Tsutomu Nakayama
3rd Author's Affiliation Hiroshima City University(Hiroshima City Univ.)
4th Author's Name Kaori Maeda
4th Author's Affiliation Hiroshima City University(Hiroshima City Univ.)
Date 2018-09-03
Paper # IA2018-17
Volume (vol) vol.118
Number (no) IA-204
Page pp.pp.9-14(IA),
#Pages 6
Date of Issue 2018-08-27 (IA)