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Paper Abstract and Keywords
Presentation 2019-09-04 15:00
[Poster Presentation] Estimation of QoE Function in WLAN to Optimize the Position of Autonomous Moving Access Point
Yuki Hayashi (Waseda Univ.), Kyoko Yamori (Asahi Univ.), Yoshiaki Tanaka (Waseda Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Wireless LAN service becomes popular. However, expansion of the service area and rapid increase in users significantly deteriorated wireless LAN quality. In particular, Access Points (APs) were placed randomly without being optimized. IEEE 802.11 based WLAN systems have a multi-rate mechanism in physical layer, where the transmission rate that sends each frame is dynamically determined by the transmission quality between the transmitting mobile stations and receiving mobile stations. In that case, a station selects the transmission rate to be used for each frame transmission by the rate switching algorithm. Sustainability is maintained by using a higher transmission rate when the signal rate condition is good, otherwise using a lower transmission rate. This mechanism causes performance anomaly problem. In order to solve this problem, the authors have proposed an autonomous moving access point (AP) that moved to the user’s center of gravity. It showed that the system throughput increased up to about 20%. However, it is not clear that how much quality of experience (QoE) increased. In this paper, the relation between QoE and QoS is clarified by subjective evaluation experiment, and it show how much QoE improves when AP is moved to the center of gravity.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless LAN / Multirate / Rate Switching / Performance Anomaly / QoS / QoE / Social Welfare /  
Reference Info. IEICE Tech. Rep.
Paper #  
Date of Issue  
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee CQ  
Conference Date 2019-09-04 - 2019-09-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Inter-University Seminar House 
Topics (in Japanese) (See Japanese page) 
Topics (in English) The 3rd Communication Quality Student Workshop 
Paper Information
Registration To CQ 
Conference Code 2019-09-CQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation of QoE Function in WLAN to Optimize the Position of Autonomous Moving Access Point 
Sub Title (in English)  
Keyword(1) Wireless LAN  
Keyword(2) Multirate  
Keyword(3) Rate Switching  
Keyword(4) Performance Anomaly  
Keyword(5) QoS  
Keyword(6) QoE  
Keyword(7) Social Welfare  
1st Author's Name Yuki Hayashi  
1st Author's Affiliation Waseda University (Waseda Univ.)
2nd Author's Name Kyoko Yamori  
2nd Author's Affiliation Asahi University (Asahi Univ.)
3rd Author's Name Yoshiaki Tanaka  
3rd Author's Affiliation Waseda University (Waseda Univ.)
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Date Time 2019-09-04 15:00:00 
Presentation Time 60 
Registration for CQ 
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