Optical Code Division Multiplexing (OCDM) and Its Applications to Photonic Networks (Special Section on Spread Spectrum Techniques and Applications)
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概要
- 論文の詳細を見る
Optical code division multiplexing (OCDM) is the other class of multiplexing techniques than time division multiplexing (TDM), wavelength division multiplexing (WDM) and space division multiplexing (SDM). OCDM has been proposed in mid '70s. It has been long since OCDM remains outside the mainstream of research community of optical communications, however, possible scarcity of the wavelength resource in future photonic networks, the simple access protocol as well as versatility of optical codes motivate recent growth of OCDM research activities. In this paper, first, fundamentals of OCDM concept are presented, highlighting optical encoding and optical time gate detection which realize time spreading/despreading. Next, current research activities of OCDM are reviewed by focusing particularly on the optical implementations and the proof-of-concept experiments. It is devoted to three categories; high bit rate point-to-point transmissions, gigabit multiple access, followed by optical path networks using optical code. Finally, future issues are briefly summarized.
- 社団法人電子情報通信学会の論文
- 1999-12-25
著者
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SOTOBAYASHI Hideyuki
Communications Research Laboratory, Ministry of Posts and Telecommunications
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KITAYAMA Ken-ichi
Department of Electronic and Information Systems, Osaka University
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Sotobayashi H
Information And Communication Systems Division Communications Research Laboratory
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Sotobayashi H
Communications Res. Lab. Ministry Of Posts And Telecommunications Tokyo Jpn
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Sotobayashi Hideyuki
Communications Research Laboratory Ministry Of Posts And Telecommunications
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Wada N
Communications Research Laboratory Ministry Of Posts And Telecommunications Of Japan
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WADA Naoya
Communications Research Laboratory, Ministry of Posts and Telecommunications of Japan
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Wada Naoya
Communications Research Laboratory
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Kitayama Ken-ichi
Department Of Electronics And Information Systems Osaka University
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Kitayama Ken-ichi
Department Of Electronic And Information Systems Osaka University
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