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Robust Video Transmission System Employing Byte-Aligned Variable-Length Turbo Codes and Its Code-Rate Adaptation over Mobile Communication Channels  

이창우 (가톨릭대학교 정보통신전자공학부)
김종원 (광주과학기술원 정보통신공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.7C, 2004 , pp. 921-930 More about this Journal
Abstract
In this paper, a robust video transmission system is proposed. To effectively prevent the corruption of video stream and its propagation in spatial and temporal domains, a version of turbo code, so-called as byte-aligned variable-length turbo code, is applied. Protection performance of the proposed turbo code is first evaluated by applying it to GOB-based variable-size ITU-T H.263+ video packets, where the protection level is statically controlled based on the joint source-channel criteria. This protection is then extended to support the adaptation of code ratio to best match the time-varying channel condition. The time-varying Rayleigh fading channel is modelled considering the correlation of the fading channel. The resulting performance comparison with the static turbo code as well as the conventional RCPC code clearly demonstrates the possibility of the proposed adaptation approach for the time-varying correlated Rayleigh-fading channel.
Keywords
turbo code; H.263+; Rayleigh lading channel; code-rate adaptation;
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  • Reference
1 A comparison of optimal and sub-optimal MAP decoding algorithms operating in the log domain /
[ P. Robertson;E. Villebrun;P. Hoeher ] / Proc. IEEE Intl. Conf. Communications ICC '95
2 Extension of ITU-T recommendation H.324 for error-resilient video transmission /
[ N. Farber;B, Girod;J. Villasenor ] / IEEE Commun. Mag.   DOI   ScienceOn
3 Analysis of video transmission over lossy channels /
[ K. Stuhlmuller;N. Farber;M. Link;B. Girod ] / IEEE Journal on Select. Areas in Commun.   DOI   ScienceOn
4 Multiplexing protocol for low bitrate multimedia communication over highly errorprone channels, draft ITU-T recommendation H.223-Annex C /
[] / ITU-T
5 Near Shannon limit error-correcting coding and decoding: Turbo codes /
[ C. Berrou;A. Glavieux;P. Thitimajshima ] / Proc. IEEE Intl. Conf. Communication - ICC '93
6 /
[ C. Heegard;S. B. Wicker ] / Turbo coding
7 On the equivalence between SOVA and Max-Log-MAP decodings /
[ M. P. C. Fossorier;F. Burkert;S. Lin;J. Hagenauer ] / IEEE Commun. Letters   DOI   ScienceOn
8 Soft-output decoding algorithms in iterative decoding of turbo codes /
[ S. Benedetto;D. Divsalar;G. Montorsi;F. Pollara ] / TDA Progress Rep.
9 Optional multiplexing protocol for low birate multimedia communication over highly error-prone channels, draft ITU-T recommendation H.223-Annex D /
[] / ITU-T
10 Robust wireless video transmission employing byte-aligned variable-length turbo code /
[ C. Lee;J. Kim ] / Proc. SPIE Visual Communications and Image Processing 2002
11 Circuit Switched Multimedia Telephony /
[] / 3GPP Technical Specification TR 23.972 V3.0.0
12 A Viterbi algorithm with soft-decision outputs and its applications /
[ J. Hagenauer;P. Hoeher ] / Proc. IEEE Globecom
13 An efficient method for simulation of frequency selective isotropic Rayleigh fading /
[ A. Anatasopoulos;K. M. Chugg ] / Proc. Vehicular Technology Conference
14 A statistical theory of mobile radio reception /
[ R. Clarke ] / Bell System Tech. J.   DOI
15 Multiplexing and channel coding (FDD) /
[ 3rd Generation Partnership Project ] / 3GPP Technical Specification, TS 25.212 V4.2.0