Presentation 2015-09-01
Performance evaluation of channel access acquisition control in unlicensed band for future mobile communication system
B. A. Hirantha Sithira Abeysekera, Riichi Kudo, Munehiro Matsui, Yasushi Takatori, Takeo Ichikawa, Masato Mizoguchi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Interworking among heterogeneous wireless networks across licensed and unlicensed bands has gained much attention to support the surge in mobile traffic. In unlicensed bands, the dominant wireless network application is wireless LAN (LAN) where frequency resources are shared based on carrier sense multiple access with collision avoidance (CSMA/CA) mechanism. When the mobile traffic starts to overwhelm the wireless resources, the throughput of some users will be significantly degraded by the hidden and exposed terminal problems created by radio environment asymmetry around the transmitter and the receiver. In order to alleviate this problem, we present a channel access acquisition control scheme for wireless LANs with the assist of licensed band. In this paper, we evaluate our proposed scheme through computer simulations, and show that our scheme improves the user throughput by twice even when there exist uncontrollable APs.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Future radio access / Phantom cell concept / Offloading / CSMA/CA / Hidden/exposed terminal
Paper # CQ2015-52
Date of Issue 2015-08-25 (CQ)

Conference Information
Committee CQ
Conference Date 2015/9/1(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kyoto Institute of Technology
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kyoko Yamori(Asahi Univ.)
Vice Chair Takanori Hayashi(NTT) / Hideyuki Shimonishi(NEC)
Secretary Takanori Hayashi(NEC) / Hideyuki Shimonishi(Osaka Univ.)
Assistant Masahiro Yamamoto(OKI) / Bo GU(Waseda Univ.) / Hirantha Abeysekera(NTT)

Paper Information
Registration To Technical Committee on Communication Quality
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Performance evaluation of channel access acquisition control in unlicensed band for future mobile communication system
Sub Title (in English)
Keyword(1) Future radio access
Keyword(2) Phantom cell concept
Keyword(3) Offloading
Keyword(4) CSMA/CA
Keyword(5) Hidden/exposed terminal
1st Author's Name B. A. Hirantha Sithira Abeysekera
1st Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
2nd Author's Name Riichi Kudo
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
3rd Author's Name Munehiro Matsui
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
4th Author's Name Yasushi Takatori
4th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
5th Author's Name Takeo Ichikawa
5th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
6th Author's Name Masato Mizoguchi
6th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
Date 2015-09-01
Paper # CQ2015-52
Volume (vol) vol.115
Number (no) CQ-206
Page pp.pp.71-76(CQ),
#Pages 6
Date of Issue 2015-08-25 (CQ)