Presentation 2004/5/21
Space-Time Block Coding for Atmospheric Optical Communication System without Channel State Information
Hiroshi YAMAMOTO, Tomoaki OHTSUKI,
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Abstract(in English) We propose an atmospheric optical communication system using space-time block codes (STBC) without channel state information (CSI). In the proposed system, since binary pulse position modulation (BPPM) is used for the modulation scheme, the square-law combiner can be used at the receiver. Thus, the proposed system can be decoded without CSI. In addition the encoding procedure of the proposed system does not expand the signal constellation for nonbinary signaling. Thus, mapping and detection of the proposed system can be performed easily. We analyze the bit error rate (BER) of the proposed system in the presence of scintillation. We compare the proposed system to a single transmit aperture system (non-diversity) and the systems using Alamouti's STBC with coherent and differential detection. We show that although the BER of the proposed system is worse than those of the systems using Alamouti's STBC with coherent and differential detection, the proposed system can achieve the better BER than a single transmit aperture system in the presence of scintillation, without CSI and the expansion of the signal constellation. Note that the proposed system is easily applicable to other M-ary PPM schemes.
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Keyword(in English) atmospheric optical communication / scintillation / space-time block code / pulse position modulation / square-law detection / channel state information
Paper # CS2004-19,OCS2004-29,PN2004-24
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Committee OCS
Conference Date 2004/5/21(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Space-Time Block Coding for Atmospheric Optical Communication System without Channel State Information
Sub Title (in English)
Keyword(1) atmospheric optical communication
Keyword(2) scintillation
Keyword(3) space-time block code
Keyword(4) pulse position modulation
Keyword(5) square-law detection
Keyword(6) channel state information
1st Author's Name Hiroshi YAMAMOTO
1st Author's Affiliation Graduate School of Science and Technology, Tokyo University of Science()
2nd Author's Name Tomoaki OHTSUKI
2nd Author's Affiliation Faculty of Science and Technology, Tokyo University of Science
Date 2004/5/21
Paper # CS2004-19,OCS2004-29,PN2004-24
Volume (vol) vol.104
Number (no) 83
Page pp.pp.-
#Pages 6
Date of Issue