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학술지 Joint-Source-Channel Coding Scheme for Scalable Video-Coding-Based Digital Video Broadcasting, Second Generation Satellite Broadcasting System
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서광덕, 지원섭, 이인기, 장대익
Journal of Electronic Imaging, v.19 no.4, pp.1-16
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.
KSP 제안 키워드
Additive white Gaussian noise(AWGN), Broadcasting system, DVB-S2, Digital satellite, Digital video broadcasting, High Frequency(HF), High-quality, Link capacity, Low Density Parity Check(LDPC), Satellite Broadcasting, Scalable Video Coding