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Paper Abstract and Keywords
Presentation 2014-01-30 14:10
Technology for the Next Generation of Digital Terrestrial Broadcasting -- Improvement of Transmission Performance in Ultra Multi-level Signals Using Non-Uniform Mapping --
Takuya Shitomi, Shingo Asakura, Susumu Saito, Tomohiro Saito, Kazuhiko Shibuya (NHK)
Abstract (in Japanese) (See Japanese page) 
(in English) NHK is conducting research on the next-generation of digital terrestrial broadcasting using UHF band to enable large-volume content services such as 8K Super Hi-Vision. As a technology to expand transmission capacity, we have studied dual-polarized MIMO which uses two orthogonal polarizations simultaneously and ultra multi-level OFDM in which the carrier modulation is expanded up to 4096 QAM. We evaluated the transmission characteristics of Non-uniform mapping which optimizes the distance between the symbols in QAM constellation. We confirmed the advantages of Non-uniform mapping compared with the conventional uniform mapping in dual-polarized MIMO, ultra multi-level OFDM transmission.
Keyword (in Japanese) (See Japanese page) 
(in English) Super Hi-Vision / Next-generation Digital Terrestrial Broadcasting / large capacity transmission technology / dual polarized MIMO / ultra multi-level OFDM / non-uniform mapping / non-uniform constellation /  
Reference Info. ITE Tech. Rep., vol. 38, no. 5, BCT2014-30, pp. 117-120, Jan. 2014.
Paper # BCT2014-30 
Date of Issue 2014-01-22 (BCT) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2014-01-29 - 2014-01-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagasaki Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To BCT 
Conference Code 2014-01-BCT-KYUSHU-BT-AP-S-FUKUOKA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Technology for the Next Generation of Digital Terrestrial Broadcasting 
Sub Title (in English) Improvement of Transmission Performance in Ultra Multi-level Signals Using Non-Uniform Mapping 
Keyword(1) Super Hi-Vision  
Keyword(2) Next-generation Digital Terrestrial Broadcasting  
Keyword(3) large capacity transmission technology  
Keyword(4) dual polarized MIMO  
Keyword(5) ultra multi-level OFDM  
Keyword(6) non-uniform mapping  
Keyword(7) non-uniform constellation  
1st Author's Name Takuya Shitomi  
1st Author's Affiliation Japan Broadcasting Corporation (NHK)
2nd Author's Name Shingo Asakura  
2nd Author's Affiliation Japan Broadcasting Corporation (NHK)
3rd Author's Name Susumu Saito  
3rd Author's Affiliation Japan Broadcasting Corporation (NHK)
4th Author's Name Tomohiro Saito  
4th Author's Affiliation Japan Broadcasting Corporation (NHK)
5th Author's Name Kazuhiko Shibuya  
5th Author's Affiliation Japan Broadcasting Corporation (NHK)
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Date Time 2014-01-30 14:10:00 
Presentation Time 25 
Registration for BCT 
Paper # BCT2014-30 
Volume (vol) 38 
Number (no) no.5 
Page pp.117-120 
Date of Issue 2014-01-22 (BCT) 

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