119

  • Web Address
  • DOI
  • Date of creation in the UzSCI system 25-04-2023
  • Read count 119
  • Date of publication 20-04-2023
  • Main LanguageO'zbek
  • Pages104-110
Tags
English

In this passage discusses a stealth scheme for transmitting optical code division
multiple access (OCDMA) signal data over a common binary phase shift keying (BPSK) channel.
The signal can be hidden under the bulk signal and system noise. The receiver uses a polarizer to
remove the BPSK signal and uses a detector to recover the stealth signal. When the emission
noise power is properly adjusted, it creates a stealth signal based on the common channel, while
having very little effect on the BPSK surround signal. BPSK demodulation masks the stealth signal
in the common channel demodulator so that the stealth signal does not affect the common
channel and the two signals do not interfere with each other.
 

№ Author name position Name of organisation
1 Abdullaeva G.M. teacher TSTU
2 Shamshieva B.M. teacher TUIT
3 Jabbarov N.A. teacher TUIT
4 Turdibekov B.B. teacher TUIT
№ Name of reference
1 B. Wu., B.J. Shastri., P. Mittal., A.N. Tait., P.R. Prucnal. Optical Signal Processing and Stealth Transmission for Privacy. “IEEE J. Sel. Top. Signal Process”, 2015. 1185
2 T. Jamil. Steganography: The art of hiding information in plain sight. “IEEE Potentials” 1999. 10.
3 J. MacAskill., N. Borger., N. Hopkins., J. Davies. “GCHQ taps fibre-optic cables for secret access to world’s communications”, 2013.
4 J. Ball. “NSA stores metadata of millions of web users for up to a year, secret files show”, 2013.
5 T. Wang., X. Cai., R. Nithyanand., R. Johnson., I. Goldberg. “Effective attacks and provable defenses for website fingerprinting, in Proc. 23rd USENIX Secur. Symp”, 2014. 143.
6 L. Boney., A. Tewfik., K. Hamdy. Digital watermarks for audio signals, in Proc. “3rd IEEE Int. Conf. Multimedia Computer System”, 1996. 473
7 D. Artz. “Digital steganography: Hiding data within data, IEEE Internet Computing”, 2001. 75
8 H. Wang., S. Wang. “Cyber warfare: Steganography vs. stag analysis, Commun. ACM”, 2004. 76
9 B. Wu., A. Tait., M. Chang., R. Prucnal. “WDM optical steganography based on amplified spontaneous emission noise”, 2014. 5925
10 B. Wu. “Optical steganography based on amplified spontaneous emission noise”, 2013. 2065
11 A. Malik., P. Singh. Free space optics: current applications and future challenges. “International Journal Optics”, 2015. 1.
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