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Comparison between Photon Communication Systems and Quantum Coherent Communication Systems
Kouichi YAMAZAKI Osamu HIROTA Masao NAKAGAWA
IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/09/25
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Communication Theory
Full Text: PDF(460.1KB)>>
This paper clarifies properties of the quantum state control communication systems such as the quantum coherent communication systems (QCCS) and the photon communication systems (PCS). We compare properties of these two systems in the case of uncoded and coded schemes. In the former case, the energy-information efficiencies of both systems are given, taking into quantum state control account, and the Fano factor of PCS which corresponds to the same performance to the ideal QCCS is given. In the latter case, the reliability functions of both systems are considered. As a result, it is shown that effects of error correcting code in the PCS are much larger than that in the QCCS.