Proposal of new information traffic platforms in UHF band for communication and broadcasting services
Proposal of new information traffic platforms in UHF band for communication and broadcasting services
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针对通信和广播服务的 UHF 频段新信息流量平台的提案
DOI：
10.1109/glocom.2001.965178
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Teruaki Yoshida
中科院分区：
文献类型：
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作者：
M. Nishi;Y. Atsumi;Terutaka Toyota;Teruaki Yoshida
20世纪下半叶，通信和广播业务的技术环境得到了极大的进步，下一代信息服务（IS）将朝着21世纪的方向发展。IS将需要宽带、移动和非对称通信。在未来的信息流量平台中，什么样的媒体适合IS ？本文认为，现有模拟地面电视广播中使用的UHF频段适合作为新is的下载信道。为了阐明使用超高频频段的有效性，比较了超高频电视广播的470mhz频段和IMT-2000的2ghz频段的传播损耗。此外，由于需要在室外和室内环境中无缝提供is，因此在室内环境中测量基本无线电传播。
In the second half of the twentieth century, the technological environments in communication and broadcasting services have been greatly advanced, and the information services (IS) of the next generation are going to be developed towards the twenty first century. The IS will require broadband, mobile and asymmetrical communications. What media will be suitable for the IS in the future information traffic platforms? In this paper, it is considered that the UHF band used in the existent analog terrestrial TV broadcasting will be suitable for the download channel of the new IS. In order to clarify the validity of using the UHF band, the propagation loss is compared between 470 MHz of UHF TV broadcasting and 2 GHz of IMT-2000. Furthermore, since it is necessary to seamlessly provide the IS not only in outdoor but also in indoor environments, the basic radio propagation is measured in indoor environments.