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Paper Abstract and Keywords
Presentation 2021-11-17 11:00
Improvement of Performance Anomaly Using Success Prioritized DCF
Naoya Koyanagi, Daisuke Umehara (Kyoto Inst. of Tech.)
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, the number of electronic devices with wireless LAN such as PCs and smartphones has increased. With the increase in electronic devices with wireless LAN, the opportunity for multiple wireless LAN stations (STAs) to connect to a single access point (AP) may increase. In IEEE 802.11 wireless LANs, when several different data rates of the stations in the same wireless networks, each station’s throughput becomes even and this network throughput deteriorates. This problem called performance anomaly. In IEEE 802.11, the distributed coordination function (DCF) method is used as a media access control. However, in the conventional DCF system, since all STAs belonging to the same AP are evenly given a transmission opportunity, STAs accessed at low data rates occupy the wireless channel in time, and the performance of stations accessed at high data rates deteriorates greatly. One of the solutions to this problem is to increase the transmission opportunity of STAs communicating at high data rates and to equalize the channel occupancy in time. Therefore, as a method to increase the transmission opportunity, we aim to solve this problem using a success prioritized DCF that gives priority access to STAs that have succeeded in data frame transmission with a certain probability.
Keyword (in Japanese) (See Japanese page) 
(in English) wireless LAN / AP / STA / IEEE 802.11 / performance anomaly / DCF / success prioritized DCF /  
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Conference Information
Committee RISING  
Conference Date 2021-11-15 - 2021-11-17 
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Paper Information
Registration To RISING 
Conference Code 2021-11-RISING 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of Performance Anomaly Using Success Prioritized DCF 
Sub Title (in English)  
Keyword(1) wireless LAN  
Keyword(2) AP  
Keyword(3) STA  
Keyword(4) IEEE 802.11  
Keyword(5) performance anomaly  
Keyword(6) DCF  
Keyword(7) success prioritized DCF  
Keyword(8)  
1st Author's Name Naoya Koyanagi  
1st Author's Affiliation Kyoto Institute of Technology (Kyoto Inst. of Tech.)
2nd Author's Name Daisuke Umehara  
2nd Author's Affiliation Kyoto Institute of Technology (Kyoto Inst. of Tech.)
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Speaker Author-1 
Date Time 2021-11-17 11:00:00 
Presentation Time 50 minutes 
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