Presentation 2020-11-27
Performance Analysis of D2D-Unlicensed Communications with Mode Selection
Ganggui Wang, Celimuge Wu, Tsutomu Yoshinaga, Yusheng Ji,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) With the increasing density of mobile devices, smaller and smaller distance between devices brings some new communication opportunities. Device-to-Device (D2D) communication, which can enable direct connection between the nearby user equipments (UEs), is one of the key technologies in 5G network. In this paper, D2D communication on the unlicensed spectrum, namely, D2D-U, is discussed. D2D-U system performance can be efficiently enhanced by utilizing the unlicensed band which is used by many other popular unlicensed networks such as Wi-Fi and Bluetooth. However, it causes a big impact on the performance of other networks since it is based on the unlicensed band shared with other traditional unlicensed networks. Therefore, the fairness of the coexistence scheme is a key problem for D2D-U. To solve the coexistence problem, two access schemes called Listen Before Talk (LBT) and Duty Cycle Mechanism (DCM) are proposed extensively. D2D users choose the transmission mode from LBT mode and DCM mode. The performance of each mode is discussed in this paper. Furthermore, the problem of how to access the unlicensed band is also be discussed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Device-to-DeviceMode SelectionListen Before TalkDuty Cycle
Paper # CQ2020-59
Date of Issue 2020-11-19 (CQ)

Conference Information
Committee NS / ICM / CQ
Conference Date 2020/11/26(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Virtual Conference
Topics (in Japanese) (See Japanese page)
Topics (in English) Network quality, Network measurement/management, Network virtualization, Network service, Blockchain, Security, Network intelligence, etc.
Chair Akihiro Nakao(Univ. of Tokyo) / Kazuhiko Kinoshita(Tokushima Univ.) / Hideyuki Shimonishi(NEC)
Vice Chair Tetsuya Oishi(NTT) / Yoichi Sato(NEC) / Haruo Ooishi(NTT) / Jun Okamoto(NTT) / Takefumi Hiraguri(Nippon Inst. of Tech.)
Secretary Tetsuya Oishi(NTT) / Yoichi Sato(Chuo Univ.) / Haruo Ooishi(NTT) / Jun Okamoto(Bosco) / Takefumi Hiraguri(Doshisha Univ.)
Assistant Shinya Kawano(NTT) / Tetsuya Uchiumi(Fujitsu Lab.) / Yoshiaki Nishikawa(NEC) / Takuto Kimura(NTT) / Ryoichi Kataoka(KDDI Research)

Paper Information
Registration To Technical Committee on Network Systems / Technical Committee on Information and Communication Management / Technical Committee on Communication Quality
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Performance Analysis of D2D-Unlicensed Communications with Mode Selection
Sub Title (in English)
Keyword(1) Device-to-DeviceMode SelectionListen Before TalkDuty Cycle
1st Author's Name Ganggui Wang
1st Author's Affiliation The University of Electro-Communications(UEC)
2nd Author's Name Celimuge Wu
2nd Author's Affiliation The University of Electro-Communications(UEC)
3rd Author's Name Tsutomu Yoshinaga
3rd Author's Affiliation The University of Electro-Communications(UEC)
4th Author's Name Yusheng Ji
4th Author's Affiliation National Institute of Informatics(NII)
Date 2020-11-27
Paper # CQ2020-59
Volume (vol) vol.120
Number (no) CQ-258
Page pp.pp.66-71(CQ),
#Pages 6
Date of Issue 2020-11-19 (CQ)