Open AccessTDS-OFDM based Digital Television Terrestrial Multimedia Broadcasting Standards
Author(s) -
Jian Song,
Chao Zhang,
Jintao Wang,
Yali Xue,
ChingTsai Pan,
Kewu Peng,
Fang Yang,
Jun Wang,
Hui Yang,
Yu Zhang,
Zhixing Yang
Publication year - 2020
Publication title -
set international journal of broadcast engineering (online)/set international journal of broadcast engineering
Language(s) - English
Resource type - Journals
eISSN - 2446-9432
pISSN - 2446-9246
DOI - 10.18580/setijbe.2020.3
Subject(s) - single frequency network , computer science , digital terrestrial television , orthogonal frequency division multiplexing , broadcasting (networking) , transmission (telecommunications) , telecommunications , digital television , transmitter , computer network , digital video broadcasting , multimedia , channel (broadcasting)
As the most popularly utilized broadcasting network, digital terrestrial television broadcasting (DTTB) can provide multimedia information coverage for the broad audience in a very efficient way because of its characteristic of wide-range coverage and mobile reception ability. After promulgating the first generation DTTB standard, digital terrestrial/television multimedia broadcasting (DTMB), in 2006, China began to research and develop the next generation DTTB standard, namely DTMB-advanced (DTMB-A), aiming to support higher spectrum efficiency and further improve transmission reliability. In 2019, DTMB-A was accepted by ITU as the second generation international DTTB standard (as System C). Similar to DTMB, time-domain synchronous - orthogonal frequency division multiplexing (TDS-OFDM) based multi-carrier modulation scheme is adopted by DTMB-A. Thanks to the more flexible frame structure, advanced error correction coding and improved constellation mapping, DTMB-A offers 30% higher transmission capacity than DTMB under the same transmission conditions. Thus, DTMB-A can support both fixed and mobile reception more efficiently, and provide users with higher quality services such as ultra-high definition television (UHDTV). This paper first gives details of key technologies at the transmitter of DTMB/DTMB-A and introduce core algorithms at the receiver. Both laboratory test and field trial results will then be provided and analyzed, especially for the application of 4K UHDTV and single frequency network (SFN).