%0 Journal Article
%T Design of Out-of-Band Protocols to Transmit UHDTV Contents in the CATV Network
%A Sunsik Roh
%J Int'l J. of Communications, Network and System Sciences
%P 253-262
%@ 1913-3723
%D 2012
%I Scientific Research Publishing
%R 10.4236/ijcns.2012.55034
%X The goal of an UHDTV is to broadcast digital video contents which is 16 times the pixel resolution of HDTV. As the resolution is increased, the UHDTV requires a transmission technology to support very high data transfer rate. In this paper, we propose two out-of-band protocols to transmit UHDTV contents in a CATV network: an OOB-based protocol and a DSG-based protocol. The former may be a short term solution which is well suitable for a traditional CATV network and the letter may be a long term solution which is adoptable for a CATV network equipped with DOCSIS functionalities. In order to transfer 200 Mbps UHDTV contents, proposed protocols use a channel bonding mechanism which combines several QAM channels. We propose CATV network architectures to support an UHDTV service with a channel bonding mechanism, and design the format of messages to share the information of bonded channels between a headend and a STB. We develop an OPNET simulator and ascertain successful transmission of UHDTV contents.
%K UHDTV (Ultra High Definition TV)
%K CATV Networks
%K Control Protocol
%K Network Simulation
%K Protocol Design
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=19481