Presentation 2015-07-31
A Study on Transmit Power Control for Uplink Single Carrier Non-orthogonal Multiple Access
Jungo Goto, Osamu Nakamura, Kazunari Yokomakura, Yasuhiro Hamaguchi, Shinsuke Ibi, Seiichi Sampei,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper investigates a strategy of transmit power control (TPC) for uplink single carrier non-orthogonal multiple access (SC-NOMA). SC-NOMA can boost system capacity with the assistance of non-orthogonally multiplexing users’ signals. As a result, SC-NOMA is capable of increasing the cell throughput by non-orthogonally multiplexing more users’ signals. On the other hand, a user, who is transmit point in uplink transmission, adopts TPC. Uplink TPC restricts the maximum transmit power for a user less than the maximum transmit power for an evolved Node B (eNB) in downlink transmission. Moreover, it increases transmit power commensurate with used bandwidth for data transmission in order to keep power spectrum density. Since a power-limited UE which reaches the maximum transmit power cannot expand the used bandwidth, the gain of the SC-NOMA may not be obtained. Focusing on channel capacity commensurate with bandwidth, this paper studies a TPC method for the SC-NOMA which can dynamically set power spectrum density. Consequently, the TPC method can expand the used bandwidth for each user. Computer simulations show that SC-NOMA can obtain high cell throughput even under the condition where many power-limited UEs exist.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Single carrier / Non-orthogonal multiple access / Transmit power control
Paper # RCS2015-124
Date of Issue 2015-07-22 (RCS)

Conference Information
Committee RCC / ASN / RCS / NS / SR
Conference Date 2015/7/29(3days)
Place (in Japanese) (See Japanese page)
Place (in English) JA Naganoken Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English) Wireless Distributed Network, M2M: Machine-to-Machine, D2D (Device-to-Device),etc.
Chair Masaaki Katayama(Nagoya Univ.) / Hiroshi Tohjo(NTT) / Makoto Taromaru(Fukuoka Univ.) / Atsushi Hiramatsu(NTT-AT) / Takeo Fujii(Univ. of Electro-Comm.)
Vice Chair Shinsuke Hara(Osaka City Univ.) / Ryu Miura(NICT) / Hiroo Sekiya(Chiba Univ.) / Hiraku Okada(Nagoya Univ.) / Kiyohito Yoshihara(KDDI R&D Labs.) / Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Hideki Tode(Osaka Pref. Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC)
Secretary Shinsuke Hara(Kyoto Univ.) / Ryu Miura(Hokkaido Univ.) / Hiroo Sekiya(Kanagawa Inst. of Tech.) / Hiraku Okada(NTT) / Kiyohito Yoshihara(Mitsubishi Electric) / Hidekazu Murata(NTT DoCoMo) / Satoshi Denno(Univ. of Fukui) / Yukitoshi Sanada(NTT) / Hideki Tode(Shinshu Univ.) / Kenta Umebayashi(NICT) / Masayuki Ariyoshi
Assistant Koji Ishii(Kagawa Univ.) / Kentaro Kobayashi(Nagoya Univ.) / Yuichi Igarashi(Hitachi) / Katsuhiro Naito(Aichi Inst. of Tech.) / Kiyohiko Hattori(NICT) / Hiroshi Fujita(Fujitsu Labs.) / Takuro Yonezawa(Keio Univ.) / Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Shohei Kamamura(NTT) / Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.)

Paper Information
Registration To Technical Committee on Reliable Communication and Control / Technical Committee on Ambient intelligence and Sensor Networks / Technical Committee on Radio Communication Systems / Technical Committee on Network Systems / Technical Committee on Smart Radio
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Transmit Power Control for Uplink Single Carrier Non-orthogonal Multiple Access
Sub Title (in English)
Keyword(1) Single carrier
Keyword(2) Non-orthogonal multiple access
Keyword(3) Transmit power control
1st Author's Name Jungo Goto
1st Author's Affiliation Sharp Corporation(Sharp)
2nd Author's Name Osamu Nakamura
2nd Author's Affiliation Sharp Corporation(Sharp)
3rd Author's Name Kazunari Yokomakura
3rd Author's Affiliation Sharp Corporation(Sharp)
4th Author's Name Yasuhiro Hamaguchi
4th Author's Affiliation Sharp Corporation(Sharp)
5th Author's Name Shinsuke Ibi
5th Author's Affiliation Osaka University(Osaka Univ)
6th Author's Name Seiichi Sampei
6th Author's Affiliation Osaka University(Osaka Univ)
Date 2015-07-31
Paper # RCS2015-124
Volume (vol) vol.115
Number (no) RCS-160
Page pp.pp.139-144(RCS),
#Pages 6
Date of Issue 2015-07-22 (RCS)