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Paper Abstract and Keywords
Presentation 2019-08-22 09:50
Generalized Boosted Approximate Message Passing for Uplink Grant-Free Non-Orthogonal Multiple Access
Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications)
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose low complexity active user detection (AUD), channel estimation (CE), and multiuser detection (MUD) for the grant-free non-orthogonal multiple access (GF-NOMA). Conventional scheme achieves the low-complexity via boosted approximate message passing (AMP), which converts a multiple measurement vector reconstruction (MMVR) into a single measurement vector reconstruction (SMVR) by multiplying random vectors and solves the reconstruction problems iteratively. This approximation however results in the significant performance loss when the number of iterations is small. We hence propose generalized boosted AMP which converts the original multiple measurement vector reconstruction into smaller one by multiplying random matrices and further propose low-complexity GF-NOMA based on this algorithm. Computer simulations confirm that our proposal outperforms the conventional boosted AMP.
Keyword (in Japanese) (See Japanese page) 
(in English) Grant-free non-orthogonal multiple access / active user detection / compressed sensing / approximate message passing / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 176, RCS2019-148, pp. 13-18, Aug. 2019.
Paper # RCS2019-148 
Date of Issue 2019-08-15 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee RCS SAT  
Conference Date 2019-08-22 - 2019-08-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite Communications, Broadcasting, Forward Error Correction, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2019-08-RCS-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Generalized Boosted Approximate Message Passing for Uplink Grant-Free Non-Orthogonal Multiple Access 
Sub Title (in English)  
Keyword(1) Grant-free non-orthogonal multiple access  
Keyword(2) active user detection  
Keyword(3) compressed sensing  
Keyword(4) approximate message passing  
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1st Author's Name Takanori Hara  
1st Author's Affiliation The University of Electro-Communications (The Univ. of Electro-Communications)
2nd Author's Name Koji Ishibashi  
2nd Author's Affiliation The University of Electro-Communications (The Univ. of Electro-Communications)
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Speaker
Date Time 2019-08-22 09:50:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2019-148 
Volume (vol) IEICE-119 
Number (no) no.176 
Page pp.13-18 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2019-08-15 


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