Development of HDTV digital transmission system through satellite

Nakaï, T.; Hatano, Yoshiko; Kasezawa, Tadashi; Itô, Hiroshi; Nishida, Masami

doi:10.1109/30.468029

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…We compare the code rates needed to ensure BER values typical of: a) MPEG-2 broadcast TV applications (BER<10 -6 [35]), b) Internet browsing supported by satellite TCP/IP (BER<10 -8 [36]), c) HDTV by satellite (BER<10 -11 [37]). In Tabs …”

Section: Results In Terms Of Link Availability Targeted To the Promentioning

confidence: 99%

Efficient Waveform Design for High-Bit-Rate W-band Satellite Transmissions

Sacchi

Rossi

Ruggieri

et al. 2011

IEEE Trans. Aerosp. Electron. Syst.

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In the EHF (Extremely High Frequency) domain, W-band (75-110 GHz) offers promising perspectives for future satellite communications, mainly in terms of large bandwidth availability for high-bit-rate transmission. In this work 1 , an innovative physical (PHY) layer design for broadband satellite connections operating in W-band is proposed, which is based on the Prolate Spheroidal Wave Functions (PSWFs). PSWF waveforms (originally proposed in short-range indoor Ultra Wideband (UWB) communications) are aimed at optimizing the tradeoff between the concentration of pulse energy in a finite time interval and in a limited bandwidth. In our paper, PSWF-based 4-ary PSM modulation, characterized by a nearoptimal compromise between spectral and envelope compactness, has been tested for the radio interface of a W-band geostationary (GEO) downlink connection. The effect of nonlinear distortions, introduced by power-efficient saturating amplifiers, can be drastically reduced without any power back-off and maintaining a very good spectral efficiency. Experimental results, obtained by means of realistic simulations, fully demonstrate the potential advantages taken by PSWF in terms of increased spectral efficiency, link availability and net payload rate with respect to state-of-the-art pulse-shaped modulations (raised-cosine filtered QAM and Gaussian Minimum Shift Keying), commonly employed in satellite communications.

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Section: Results In Terms Of Link Availability Targeted To the Promentioning

confidence: 99%

Efficient Waveform Design for High-Bit-Rate W-band Satellite Transmissions

Sacchi

Rossi

Ruggieri

et al. 2011

IEEE Trans. Aerosp. Electron. Syst.

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“…Such heterogeneity in user devices and channel conditions has escalated the need for efficient and effective techniques for adapting compressed videos to better suit the different capabilities, constraints, and requirements of transmission channels and end users. 7 In existing H.264 or MPEG-2 HDTV/SDTV compatible broadcasting techniques, a SD (standard-definition) transport stream and a HD (high-definition) transport stream, both containing the same program, are modulated and simultaneously broadcasted on one standard channel. A major drawback of this approach is that it takes the upper limit of the bandwidth within one channel leaving few bandwidth for the modulation overhead.…”

Section: Introductionmentioning

confidence: 99%

Joint-source-channel coding scheme for scalable video-coding-based digital video broadcasting, second generation satellite broadcasting system

Seo

Sup

Lee

et al. 2010

J. Electron. Imaging

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We propose a joint-source-channel coding (JSCC) scheme that can provide and sustain high-quality video service in spite of deteriorated transmission channel conditions of the second generation of the digital video broadcasting (DVB-S2) satellite broadcasting service. Especially by combining the layered characteristics of the SVC (scalable video coding) video and the robust channel coding capability of LDPC (low-density parity check) employed for DVB-S2, a new concept of JSCC for digital satellite broadcasting service is developed. Rain attenuation in high-frequency bands such as the Ka band is a major factor for lowering the link capacity in satellite broadcasting service. Therefore, it is necessary to devise a new technology to dynamically manage the rain attenuation by adopting a JSCC scheme that can apply variable code rates for both source and channel coding. For this purpose, we develop a JSCC scheme by combining SVC and LDPC, and prove the performance of the proposed JSCC scheme by extensive simulations where SVC coded video is transmitted over various error-prone channels with AWGN (additive white Gaussian noise) patterns in DVB-S2 broadcasting service. © 2010 SPIE and IS&T.

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