We propose a novel technique to increase the confidentiality of an optical code division multiple access (OCDMA) system. A virtual user technique is analyzed and implemented to make an OCDMA system secure. Using this technique, an eavesdropper will never find an isolated authorized user's signal. When authorized users and virtual users transmit data synchronously and asynchronously, network security increases by 25% and 37.5%, respectively.
© 2011 Chinese Optics Letters
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4510) Fiber optics and optical communications : Optical communications
(060.4785) Fiber optics and optical communications : Optical security and encryption
Fiber Optics and Optical Communications
Vishav Jyoti and R. S. Kaler, "Novel virtual user scheme to increase data confidentiality against eavesdropping in OCDMA network," Chin. Opt. Lett. 9, 120602- (2011)