A Prototype Modem with the Capability of Unequal Error Protection Developed for ETS-VIII Experiments(<Special Section>Recent Fundamental Technologies for Broadband Satellite Communications)
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概要
- 論文の詳細を見る
A prototype modem with unequal error protection (UEP) capability was developed using multiple block coded modulation (MBCM). Benefited from its unique structure, MBCM can be used to provide UEP straightforward. We propose a new method to increase the robustness of the carrier recovery process by taking advantage of the MBCM code structure. We also use a frame format to facilitate the synchronization operation. This modem was developed in preparation for the mobile satellite communication experiments using the Engineering Test Satellite of VIII-type (ETS-VIII). In addition of MBCM, some other types of modulation schemes have been implemented in the same modem to enable a range of communication experiments to be performed. The modem can operate at variable data rates. The results of laboratory measurements agreed well with computer simulation results. Typical link budgets based on the parameters of ETS-VIII are also presented.
- 社団法人電子情報通信学会の論文
- 2004-08-01
著者
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LI Huan-Bang
National Institute of Information and Communications Technology
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Li Huan-bang
National Institute Of Information And Communications Technology (nict)
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OHKAWA Mitsugu
National Institute of Information and Communications Technology (NICT)
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SARUWATARI Nobufumi
Toshiba Corp.
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KARIYA Noriyuki
Toshiba Corp.
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Ohkawa Mitsugu
National Institute Of Information And Communications Technology
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