Title :
NCR clock recovery method suitable for DVB-S2/RCS2 systems
Author :
HanIk Jeon ; Deock-Gil Oh
Author_Institution :
Mobile Commun. & Digital Broadcasting Eng., Korea Univ. of Sci. & Technol. (UST), Daejeon, South Korea
Abstract :
In general two-way satellite communication systems based on TDMA(Time Division Multiple Access) require network clock synchronization among hub and terminals. This paper describes basic concepts about NCR(Network Clock Reference) clock recovery method which offers hub station timing information to all network terminals. In addition, we proposes an appropriate PLL(Phase Locked Loop) structure in terms of supporting CCM(Constant Coding and Modulation) mode as well as ACM(Adaptive Coding and Modulation) mode which optimize system throughput by changing code rate and modulation.
Keywords :
adaptive codes; digital video broadcasting; direct broadcasting by satellite; encoding; modulation; optimisation; phase locked loops; synchronisation; time division multiple access; ACM mode; CCM mode; DVB-S2-RCS2 systems; NCR clock recovery method; PLL structure; TDMA; adaptive coding and modulation mode; constant coding and modulation mode; digital video broadcasting; hub station timing information; network clock reference; network clock synchronization; network terminals; phase locked loop; return channel; satellite communication systems; satellite second generation; system throughput; time division multiple access; Digital video broadcasting; Jitter; Modulation; Radiation detectors; Satellite broadcasting; Satellites; Synchronization; ACM/VCM; NCR; PLL circuit; clock recovery method; network synchronization;
Conference_Titel :
Information and Communication Technology Convergence (ICTC), 2014 International Conference on
Conference_Location :
Busan
DOI :
10.1109/ICTC.2014.6983355
