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Design of 3-D Wavelength/Time/Space Codes for Asynchronous Fiber-Optic CDMA Systems

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2 Author(s)
Singh, J. ; Dept. of Electron. & Commun. Eng., Beant Coll. of Eng. & Technol., Gurdaspur, India ; Singh, M.L.

A new family of three-dimensional (3-D) wavelength/time/space codes for asynchronous optical code-division multiple access (OCDMA) systems with off-peak auto-correlation, ??a = 0, and peak cross-correlation, ??c = 1, is reported. With W wavelengths and T time-slots, (W 2 T + W) codes are generated. Antipodal signaling/differential detection is employed in the system. The performance is compared to the recently reported two-dimensional (2-D)/3-D codes. Arrayed waveguide grating-based reconfigurable 2-D implementation for encoder/decoder is presented. Suitability of our 3-D codes for secure OCDMA networks is discussed.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 3 )