Improving Transmission Characteristics Using LDM-BST-OFDM with Direct Decoding in Next-Generation Digital Terrestrial Television Broadcasting

Recently, research has been conducted on ultrahigh-definition television (UHDTV) broadcasting in Japan. This paper shows LDM-BST-OFDM with direct decoding that is better than current DTTB scheme. In next-generation digital terrestrial television broadcasting(DTTB), UHDTV will be realized. For next-g...

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Bibliographic Details
Main Authors: Tanaka, Yoko, Nakamura, Akira, Itami, Makoto
Format: Conference Proceeding
Language:English
Subjects:
Bit rate
Broadcasting
Decoding
direct decoding
LDM-BST-OFDM
Modulation
Next generation networking
next-generation digital terrestrial television broadcasting
UHDTV
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Summary:Recently, research has been conducted on ultrahigh-definition television (UHDTV) broadcasting in Japan. This paper shows LDM-BST-OFDM with direct decoding that is better than current DTTB scheme. In next-generation digital terrestrial television broadcasting(DTTB), UHDTV will be realized. For next-generation DTTB, transmission scheme is needed to be improved. Therefore, first in this paper, bit rates were calculated. bit rates in layered division multiplexing-band segmented transmission-orthogonal frequency division multiplexing (LDM-BST-OFDM) is higher than in BST-OFDM. Second, relationship between IL, QAM modulation and Required CNR was shown. The higher the I L or the higher-oder modulation, the better transmission characteristics. Third, comparison of transmission characteristics in LDM-BST-OFDM and BST-OFDM. By choosing the best parameter in LDM-BST-OFDM where the needed bit rate is met, the transmission characteristics was possible to be improved than the current broadcasting scheme.This paper shows that LDM-BST-OFDM with direct decoding can improve transmission characteristics.
ISSN:2158-4001
DOI:10.1109/ICCE59016.2024.10444283