Presentation 2019-06-19
Policy Gradient Reinforcement Learning for Reducing Transmission Delay in EDCA
Masao Shinzaki, Yusuke Koda, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper proposes a packet mapping algorithm among Access Categories (ACs) in Enhanced Distributed Channel Access (EDCA) scheme based on policy gradient Reinforcement Learning (RL).In EDCA scheme based on an autonomous distributed control, high priority packets obtain more transmission opportunity than low priority packets.The arrival rate of high priority packets can be higher than that of low priority packets.In such a situation, mapping high priority packets to the AC defined in EDCA scheme is not necessarily the best mapping algorithm to minimize the transmission delay of high priority packets. Therefore, we assume that EDCA scheme can map high priority packets to any AC.Although each AP sends high priority packets early, however, APs can not always send high priority packets early.This paper proposes policy gradient RL to empirically obtain optimal mapping algorithm.By using the mapping algorithm based on RL, simulation results reveal that the transmission delay can be reduced.The average transmission delay of the proposed mapping algorithm is 13.8% smaller than that of the conventional mapping algorithm.Moreover, the average transmission delay of the proposed mapping algorithm is 5.2% smaller than that of the heuristic mapping algorithm.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) IEEE 802.11e / EDCA / reinforcement learning / policy gradient
Paper # RCS2019-52
Date of Issue 2019-06-12 (RCS)

Conference Information
Committee RCS
Conference Date 2019/6/19(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Miyakojima Hirara Port Terminal Building
Topics (in Japanese) (See Japanese page)
Topics (in English) First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc.
Chair Tomoaki Otsuki(Keio Univ.)
Vice Chair Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.)
Secretary Satoshi Suyama(NTT) / Fumiaki Maehara(Kyushu Univ.) / Toshihiko Nishimura
Assistant Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Doshisha Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Shinya Kumagai(Fujitsu Labs.)

Paper Information
Registration To Technical Committee on Radio Communication Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Policy Gradient Reinforcement Learning for Reducing Transmission Delay in EDCA
Sub Title (in English)
Keyword(1) IEEE 802.11e
Keyword(2) EDCA
Keyword(3) reinforcement learning
Keyword(4) policy gradient
1st Author's Name Masao Shinzaki
1st Author's Affiliation Kyoto University(Kyoto Univ.)
2nd Author's Name Yusuke Koda
2nd Author's Affiliation Kyoto University(Kyoto Univ.)
3rd Author's Name Koji Yamamoto
3rd Author's Affiliation Kyoto University(Kyoto Univ.)
4th Author's Name Takayuki Nishio
4th Author's Affiliation Kyoto University(Kyoto Univ.)
5th Author's Name Masahiro Morikura
5th Author's Affiliation Kyoto University(Kyoto Univ.)
Date 2019-06-19
Paper # RCS2019-52
Volume (vol) vol.119
Number (no) RCS-90
Page pp.pp.91-96(RCS),
#Pages 6
Date of Issue 2019-06-12 (RCS)