Satellite communication systems for multimedia services
Satellite communication systems for multimedia services
- Author(s): K. Araki ; K. Ohata ; K. Okada ; H. Mizuno ; S. Samejima
- DOI: 10.1049/cp:19950097
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- Author(s): K. Araki ; K. Ohata ; K. Okada ; H. Mizuno ; S. Samejima Source: 10th International Conference on Digital Satellite Communications (ICDSC-10), 1995 p. 690 – 695
- Conference: 10th International Conference on Digital Satellite Communications (ICDSC-10)
- DOI: 10.1049/cp:19950097
- ISBN: 0 85296 635 0
- Location: Brighton, UK
- Conference date: 15-19 May 1995
- Format: PDF
This paper proposes a satellite communication system configuration suitable for multimedia communication and discusses the requirements for the network system. In the proposed system, multi-speed digital data is multiplexed and distributed to users by satellites. The distribution data is received not only at users' homes directly but also at the head-ends of CATV systems. Users can get desired information from multiplexed data by using a multimedia adapter consisting of a receiver and a decoder. Each user can send requirements to the information providers (IPs) via individual low bit-rate lines and the IPs can manage and maintain the user orders through those lines. The satellite network will exist not as a stand-alone system but as a virtual network in B-ISDN, which will be combined with terrestrial optical fiber links, radio links, and satellite links. As the first step in achieving a multimedia service network, a high bit-rate satellite system and a medium bit-rate satellite system are developed. In the former system, a high bit-rate transmission capability of 156 Mbps is attained. In the latter system, a very small transportable earth station of 1.2-mφ antenna is actualized. To clarify the effectiveness of using satellite communication systems for multimedia services, a demonstration using transportable earth stations of the medium bit-rate satellite system is now being carried out.
Inspec keywords: telecommunication services; VSAT networks; radio links; digital radio; B-ISDN; satellite links; optical fibre communication; multimedia communication; optical fibre networks; cable television
Subjects: Multimedia communications; Optical communication; Satellite communication systems; CATV and wired systems; ISDN
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