Presentation 2017-03-03
Distributed Cooperative Access Point Selection for Airtime Fairness in Dence WLAN Deployment
Shinya Yamada, Kazuya Tsukamoto,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Recently, huge amount of Wireless LAN access points (APs) are widely deployed in public spaces such as station and park and WLAN interface is commonly installed in mobile station (STAs) such as smart phones. Hence, ultra dense WLAN environment will be likely to appear in the near future. In this ultra dense WLAN deployment, the communication performance is drastically decreased due to the performance anomaly problem caused by the deference between STA's airtime. Moreover, the transmission delay is inherently increased due to not only frame collision but also frame losses by the hidden terminal problem. However, since STA commonly connects an AP with the highest received signal strength indicator (RSSI) obtained from received beacon packets, from among all neighboring APs. Since RSSI does not consider the overhead of higher (upper than MAC) layer,communication performance cannot be guaranteed by RSSI. Therefore, in this paper, we propose a new AP selection scheme. First, our proposed scheme selects a channel that can avoid the performance anomaly problem. Second, an AP with the highest estimated throughput performance is selected. The transmission waiting time and collision rate of beacon packets are used to estimate the throughput performance. Through simulation experiment, we demonstrated that our proposed scheme can achieve airtime fairness of all channels, while improving the average throughput performance by 32%.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Ultra Dense WLAN environment / Hidden Terminal Problem / Performance Anomaly / AP selection
Paper # NS2016-239
Date of Issue 2017-02-23 (NS)

Conference Information
Committee NS / IN
Conference Date 2017/3/2(2days)
Place (in Japanese) (See Japanese page)
Place (in English) OKINAWA ZANPAMISAKI ROYAL HOTEL
Topics (in Japanese) (See Japanese page)
Topics (in English) General
Chair Hideki Tode(Osaka Pref. Univ.) / Katsunori Yamaoka(Tokyo Inst. of Tech.)
Vice Chair Yoshikatsu Okazaki(NTT) / Takuji Kishida(NTT)
Secretary Yoshikatsu Okazaki(Kyushu Inst. of Tech.) / Takuji Kishida(NTT)
Assistant Shohei Kamamura(NTT) / Kunitake Kaneko(Keio Univ.) / Takashi Natsume(NTT)

Paper Information
Registration To Technical Committee on Network Systems / Technical Committee on Information Networks
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Distributed Cooperative Access Point Selection for Airtime Fairness in Dence WLAN Deployment
Sub Title (in English)
Keyword(1) Ultra Dense WLAN environment
Keyword(2) Hidden Terminal Problem
Keyword(3) Performance Anomaly
Keyword(4) AP selection
1st Author's Name Shinya Yamada
1st Author's Affiliation Kyushu Institute of Technology(Kyutech)
2nd Author's Name Kazuya Tsukamoto
2nd Author's Affiliation Kyushu Institute of Technology(Kyutech)
Date 2017-03-03
Paper # NS2016-239
Volume (vol) vol.116
Number (no) NS-484
Page pp.pp.469-474(NS),
#Pages 6
Date of Issue 2017-02-23 (NS)