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Multimedia communications

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  • Electrical and electronic engineering [2]
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  • Telecommunication applications [2]
  • Multimedia communications [2]
  • Radio, television and audio [2]
  • Television and video equipment, systems and applications [2]
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Standards for high speed digital communications over cable TV networks
Author(s): P. Tzerefos, C. Smythe, I. Stergiou, S. Cvetkovic
Source: Sixth IEE Conference on Telecommunications, 1998, p. 224 - 229
Type: ConferencePaper
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The development of a standard for interactive multimedia services over CATV networks draws interest from both the data communications and entertainment industries. Current solutions available for data transfer over hybrid fibre coax (HFC) community antenna television (CATV) networks are based on proprietary random access protocols. Consequently they can not be used in an open system and are limited when delivering digital audio and video streams. Few manufacturers have implemented custom technologies that can support a quality of service (QOS) which does not allow deployment of multimedia services on a wider scale. A unified standard is required, that will allow the development of interoperable hardware and drive down the cost of implementation. This paper presents the efforts, progress and strategies of the different bodies working on the production of a standard for CATV networks.

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Standards for interactive multimedia delivery across CATV infrastructures
Author(s): C. Smythe, C. Basso, S. Hartley, P. Tzerefos, S. Cvetkovic
Source: International Broadcasting Conference (IBC), 1997, p. 43 - 48
Type: ConferencePaper
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There are several complementary and competing standardization activities in the field of broadband digital data transfer across community antenna television (CATV) infrastructures. Key concerns in this standardization are compatibility with other broadband standards, the support of legacy systems and the immediate provision of data transfer within CATV franchise networks. At present digital data transfer using CATV is provided through cable modems which construct a broadband Ethernet architecture (these are proprietary solutions). The bodies considering CATV standardisation include the IEEE 802.14 Project, the ATM Forum, the Internet Engineering Task Force (IETF), the Multimedia Cable Networks Systems (MCNS) group, the Digital Audio-Visual Council (DAVIC) and the Society of Cable Telecommunications Engineers (SCTE); the Digital Video Broadcasting (DVB) project is also making key contributions. Between them they are considering CATV compatibility with asynchronous transfer mode (ATM) solutions, Internet protocol compatibility, CATV network adapters and the provision of interactive multimedia services to the home. It is clear that no single solution will dominate in the early years so it is essential that the issues of interconnectivity are addressed as soon as possible.

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