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Optical steganography transmission of optical CDMA signals over a public BPSK channel.

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Název: Optical steganography transmission of optical CDMA signals over a public BPSK channel.
Autoři: Yen, Chih-Ta, Huang, Guan-Jie
Zdroj: Engineering Computations; 2016, Vol. 33 Issue 6, p1810-1824, 15p
Témata: CRYPTOGRAPHY, CODE division multiple access, PHASE shift keying, PHASE modulation, BIT error rate
Abstrakt: Purpose – The purpose of this paper is to propose a new optical steganography framework that can be applied to public optical binary phase-shift keying (BPSK) systems by transmitting a stealth spectrum-amplitude-coded optical code-division multiple-access signal through a BPSK link. Design/methodology/approach – By using high-dispersion elements, the stealth data pulses temporally stretch and the amplitude of the signal decreases after stretching. Thus, the signal can be hidden underneath the public signal and system noise. At the receiver end, a polarizer is used for removing the public BPSK signal and the stealth signal is successfully recovered by a balanced detector. Findings – In a simulation, the bit-error rate (BER) performance improved when the stealth power increased. Research limitations/implications – The BER performance worsens when the noise power become large. Future work will consider increasing the system performance during high-noise power situation. Practical implications – By properly adjusting the power of the amplified spontaneous emission noise, the stealth signal can be hidden well in the public channel while producing minimal influence on the public BPSK signal. Originality/value – In conclusion, the proposed optical steganography framework makes it more difficult for eavesdroppers to detect and intercept the hidden stealth channel under public transmission, even when using a dispersion compensation scheme. [ABSTRACT FROM AUTHOR]
Copyright of Engineering Computations is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Databáze: Complementary Index
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Optical steganography transmission of optical CDMA signals over a public BPSK channel.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Yen%2C+Chih-Ta%22">Yen, Chih-Ta</searchLink><br /><searchLink fieldCode="AR" term="%22Huang%2C+Guan-Jie%22">Huang, Guan-Jie</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: Engineering Computations; 2016, Vol. 33 Issue 6, p1810-1824, 15p
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22CRYPTOGRAPHY%22">CRYPTOGRAPHY</searchLink><br /><searchLink fieldCode="DE" term="%22CODE+division+multiple+access%22">CODE division multiple access</searchLink><br /><searchLink fieldCode="DE" term="%22PHASE+shift+keying%22">PHASE shift keying</searchLink><br /><searchLink fieldCode="DE" term="%22PHASE+modulation%22">PHASE modulation</searchLink><br /><searchLink fieldCode="DE" term="%22BIT+error+rate%22">BIT error rate</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose – The purpose of this paper is to propose a new optical steganography framework that can be applied to public optical binary phase-shift keying (BPSK) systems by transmitting a stealth spectrum-amplitude-coded optical code-division multiple-access signal through a BPSK link. Design/methodology/approach – By using high-dispersion elements, the stealth data pulses temporally stretch and the amplitude of the signal decreases after stretching. Thus, the signal can be hidden underneath the public signal and system noise. At the receiver end, a polarizer is used for removing the public BPSK signal and the stealth signal is successfully recovered by a balanced detector. Findings – In a simulation, the bit-error rate (BER) performance improved when the stealth power increased. Research limitations/implications – The BER performance worsens when the noise power become large. Future work will consider increasing the system performance during high-noise power situation. Practical implications – By properly adjusting the power of the amplified spontaneous emission noise, the stealth signal can be hidden well in the public channel while producing minimal influence on the public BPSK signal. Originality/value – In conclusion, the proposed optical steganography framework makes it more difficult for eavesdroppers to detect and intercept the hidden stealth channel under public transmission, even when using a dispersion compensation scheme. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of Engineering Computations is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1108/EC-08-2015-0253
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 15
        StartPage: 1810
    Subjects:
      – SubjectFull: CRYPTOGRAPHY
        Type: general
      – SubjectFull: CODE division multiple access
        Type: general
      – SubjectFull: PHASE shift keying
        Type: general
      – SubjectFull: PHASE modulation
        Type: general
      – SubjectFull: BIT error rate
        Type: general
    Titles:
      – TitleFull: Optical steganography transmission of optical CDMA signals over a public BPSK channel.
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            NameFull: Yen, Chih-Ta
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            NameFull: Huang, Guan-Jie
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              M: 09
              Text: 2016
              Type: published
              Y: 2016
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              Value: 33
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            – TitleFull: Engineering Computations
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