Simulation of Satellite Digital Video Broadcasting via Variable Frequency Based on Simulink

Abstract:

The traditional cable television broadcasting, digital mobile television broadcasting and the direct satellite video broadcasting ensure the television services of people’s daily life. Owing to digital broadcast satellite, also known as the digital video broadcasting (DVB) protocol applying terminal, direct-to-home television services with an outdoor dish of one meter come true. In order to accommodate the requirements of various broadcasting services, the DVB-S.2 protocol provides more efficient technology details. The LDPC codes concatenated with BCH codes achieve high performance near the Shannon limit and have low encoding and decoding complexity. Some high efficiency modulation methods are introduced into theDVB-S.2, such as QPSK, 8PSK, 16APSK and 32APSK. The adaptive coding and modulation (ACM) according the channel performance (E s /N 0 ) is applied in the DVB-S.2 technology. In order to preventing the burst disturbance, satellite broadcasting via variable frequency band is presented in this paper to ensure the quality of services. The DVB-S.2 via variable frequency is simulated based on Matlab/Simulink in this paper, and the simulation implements the video streams coding and modulation, ACM and frequency change with the channel performance.

• Periodical: Applied Mechanics and Materials (Volume 197)
• Pages: 441-447
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.197.441
• Online since: September 2012
• Authors: Nan Li, Bo Jiang, Jing Yong Liu, Wei Zhang, Xing Xing Chen
• Keywords: Digital Video Broadcasting, Simulation, Simulink, Variable Frequency

References

[1] ETSI EN 300 421 (V. 1. 1. 2): Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for 11/12 GHz satellite services.

[2] ETSI EN 301 210: Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for Digital Satellite News Gathering(DSNG) and other contribution applications by satellite.

[3] ETSI TR 101 154: Digital Video Broadcasting (DVB); Implementation guidelines for the use of MPEG-2 Systems, Video and Audio in satellite, cable and terrestrial broadcasting applications.

DOI: 10.1017/cbo9780511609732.008

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[7] ETSI EN 302 307 (V1. 2. 1): Digital Video Broadcasting (DVB); Second generation framing structure, channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering and other broadband satellite applications.