Abstract

Broadband communication using satellites requires use of the Ka-band. Services of this type are now emerging all over the world, some with capacities in excess of 100 Gbps. However, as the radio bandwidth resources become exhausted, high-speed optical communication is required instead. The National Institute of Information and Communications Technology (NICT) in Japan researches and develops the next generation of space communication technology. A hybrid satellite communication system using radio and optical frequencies is being studied. Here, the research and development activities of NICT are introduced, along with the concept of the hybrid high-throughput satellite communication system.

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