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Paper Abstract and Keywords
Presentation 2018-10-30 13:30
[Poster Presentation] Active device detection for wavelet-based multicarrier grant-free transmissions
Poompat Saengudomlert, Sarbagya Buddhacharya (Bangkok Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) We investigate the problem of active device detection in grant-free multicarrier transmissions based on wavelet packet modulation (WPM). In particular, each subcarrier is assigned to a device that is not always active, as is common for machine-type communications (MTC). Detection of active devices is based on energy detection. Unlike for orthogonal frequency division multiplexing (OFDM), the subspace structure of WPM allows the use of group testing in which energy detection is applied to a group of devices instead of a single device in each step. Simulation results on the number of energy detection steps indicate that group testing can help reduce the computational complexity in active device detection when active probabilities are low.
Keyword (in Japanese) (See Japanese page) 
(in English) Multi-carrier modulation / Wavelet packet modulation / Grant-free transmissions / Group testing / Energy detection / / /  
Reference Info. IEICE Tech. Rep.
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Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
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Conference Information
Committee SR RCS  
Conference Date 2018-10-30 - 2018-10-31 
Place (in Japanese) (See Japanese page) 
Place (in English) Mandarin Hotel, Bangkok, Thailand 
Topics (in Japanese) (See Japanese page) 
Topics (in English) SmartCom2018 
Paper Information
Registration To SR 
Conference Code 2018-10-SR-RCS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Active device detection for wavelet-based multicarrier grant-free transmissions 
Sub Title (in English)  
Keyword(1) Multi-carrier modulation  
Keyword(2) Wavelet packet modulation  
Keyword(3) Grant-free transmissions  
Keyword(4) Group testing  
Keyword(5) Energy detection  
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1st Author's Name Poompat Saengudomlert  
1st Author's Affiliation Bangkok University (Bangkok Univ.)
2nd Author's Name Sarbagya Buddhacharya  
2nd Author's Affiliation Bangkok University (Bangkok Univ.)
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Speaker Author-1 
Date Time 2018-10-30 13:30:00 
Presentation Time 60 minutes 
Registration for SR 
Paper #  
Volume (vol) vol.118 
Number (no) no.274 
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