Strategy for Promotion of HDTV Service and for Implementation of Digital Broadcasting in Japan

1996 ◽  
Author(s):  
Takehiro Izumi
Keyword(s):  
Digital Broadcasting

Measurement and Simulation of System Performance of Digital Broadcasting System

2013 ◽  
Vol 284-287 ◽  
pp. 2908-2912
Author(s):  
Hsien Wei Tseng ◽  
Wei Chien ◽  
Shih Nan Lu ◽  
Wei Chen Lee ◽  
Yih Guang Jan ◽  
...  
Keyword(s):  
System Performance ◽  
Simulation Analysis ◽  
Convolutional Code ◽  
Additive White Gaussian Noise ◽  
Viterbi Decoding ◽  
Modulation Formats ◽  
Reed Solomon Code ◽  
Broadcasting System ◽  
Digital Broadcasting ◽  
Transmitted Signal

In this paper, we use MATLAB software to build the physical layer transceiver of the Digital Video Broadcasting Terrestrial System (DVB-T) and Additive White Gaussian Noise (AWGN) is added into the transmitted signal during its transmission. The transmitted signal passes through modulation, demodulation, encoding and decoding processes the resulting demodulated signal is compared with the transmitted signal to calculate its Bit Error Rate (BER). Three modulation formats, QPAK, 16-QAM and 64-QAM are simulated and through various Signal to Noise (SNR) ratio to evaluate the system performance. Various encoding techniques such as Reed Solomon Code, Convolutional Code and Viterbi Decoding [1-6] have been implemented and through simulation to make detailed system performance analysis and comparison. detailed system performance simulation, analysis and comparisons.

scholarly journals Versatile Video Coding for 3.0 Next Generation Digital TV in Brazil

2021 ◽  
Vol 2021 (1) ◽  
pp. 9-17
Author(s):  
Thibaud Biatek ◽  
Mohsen Abdoli ◽  
Mickael Raulet ◽  
Adam Wieckowski ◽  
Christian Lehman ◽  
...  
Keyword(s):  
Video Coding ◽  
Compressed Video ◽  
Limited Bandwidth ◽  
Video Signals ◽  
4K Uhd ◽  
Time Encoding ◽  
Digital Broadcasting ◽  
Virtual And Augmented Reality ◽  
Video Broadcast ◽  
Successive Generations

In the past few decades, the video broadcast ecosystem has gone through major changes; Originally transmitted using analog signals, it has been more and more transitioned toward digital, leveraging compression technologies and transport protocols, principally developed by MPEG. Along this way, the introduction of new video formats was achieved with standardization of new compression technologies for their better bandwidth preservation. Notably, SD with MPEG-2, HD with H.264, 4K/UHD with HEVC. In Brazil, the successive generations of digital broadcasting systems were developed by the SBTVD Forum, from TV-1.0 to TV-3.0 nowadays. The ambition of TV-3.0 is significantly higher than that of previous generations as it targets the delivery of IPbased signals for applications, such as 8K, HDR, virtual and augmented reality. To deliver such services, compressed video signals shall fit into a limited bandwidth, requiring even more advanced compression technologies. The Versatile Video Coding standard (H.266/VVC), has been finalized by the JVET committee in 2021 and is a relevant candidate to address the TV3.0 requirements. VVC is versatile by nature thanks to its dedicated tools for efficient compression of various formats, from 8K to 360°, and provides around 50% of bitrate saving compared to its predecessor HEVC. This paper presents the VVC-based compression system that has been proposed to the SBTVD call for proposals for TV-3.0. A technical description of VVC and an evaluation of its coding performance is provided. In addition, an end-to-end live transmission chain is demonstrated, supporting 4K real-time encoding and decoding with a low glass-to-glass latency.

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