Presentation	2001/6/21 Parallel Combinatory Multiple-Subcarrier Optical Communication Systems Norio KITAMOTO, Tomoaki OHTSUKI,
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Abstract(in English)	We propose a parallel combinatory multiple-subcarrier (PC-SCM) optical communication system. The proposed system with N subcarriers selects at each symbol interval a subset of U null subcarriers and transmits |log_2(^N_U)| bits for the selected subset. The other N - U = N_ subcarriers are modulated by points from an M-PSK signal constellation. Thus, the proposed system can transmit more information at each symbol interval than a conventional SCM system with N subcarriers. In addition the proposed system can decrease the bias that must be added to the SCM electrical signal, because the number of subcarriers other than null subcarriers is smaller than that in the conventional SCM systems and thus the minimum power becomes larger. Therefore, the proposed system can decrease the required energy per bit.
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Keyword(in English)	Parallel Combinatory / Multiple-Subcarrier / Optical Communication
Paper #	CS2001-38,RCS2001-45
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Conference Information
Committee	RCS
Conference Date	2001/6/21(1days)
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Paper Information
Registration To	Radio Communication Systems (RCS)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Parallel Combinatory Multiple-Subcarrier Optical Communication Systems
Sub Title (in English)
Keyword(1)	Parallel Combinatory
Keyword(2)	Multiple-Subcarrier
Keyword(3)	Optical Communication
1st Author's Name	Norio KITAMOTO
1st Author's Affiliation	Faculty of Science and Technology, Science University of Tokyo()
2nd Author's Name	Tomoaki OHTSUKI
2nd Author's Affiliation	Faculty of Science and Technology, Science University of Tokyo
Date	2001/6/21
Paper #	CS2001-38,RCS2001-45
Volume (vol)	vol.101
Number (no)	149
Page	pp.pp.-
#Pages	8
Date of Issue