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Paper Abstract and Keywords
Presentation 2015-07-31 13:10
A Study on Transmit Power Control for Uplink Single Carrier Non-orthogonal Multiple Access
Jungo Goto, Osamu Nakamura, Kazunari Yokomakura, Yasuhiro Hamaguchi (Sharp), Shinsuke Ibi, Seiichi Sampei (Osaka Univ)
Abstract (in Japanese) (See Japanese page) 
(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) 
(in English) Single carrier / Non-orthogonal multiple access / Transmit power control / / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 160, RCS2015-124, pp. 139-144, July 2015.
Paper # RCS2015-124 
Date of Issue 2015-07-22 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee RCC ASN RCS NS SR  
Conference Date 2015-07-29 - 2015-07-31 
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. 
Paper Information
Registration To RCS 
Conference Code 2015-07-RCC-ASN-RCS-NS-SR 
Language Japanese 
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)
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Date Time 2015-07-31 13:10:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2015-124 
Volume (vol) IEICE-115 
Number (no) no.160 
Page pp.139-144 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2015-07-22 

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