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has been cited by the following article:

• TITLE: Design of Out-of-Band Protocols to Transmit UHDTV Contents in the CATV Network

  AUTHORS: Sunsik Roh

  KEYWORDS: UHDTV (Ultra High Definition TV); CATV Networks; Control Protocol; Network Simulation; Protocol Design

  JOURNAL NAME: International Journal of Communications, Network and System Sciences, Vol.5 No.5, May 30, 2012

  ABSTRACT: 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.