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

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DOI: 10.4236/ijcns.2012.55034    3,234 Downloads   6,136 Views Citations
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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.

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S. Roh, "Design of Out-of-Band Protocols to Transmit UHDTV Contents in the CATV Network," International Journal of Communications, Network and System Sciences, Vol. 5 No. 5, 2012, pp. 253-262. doi: 10.4236/ijcns.2012.55034.

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