This paper investigates the problem of protecting multicast sessions in optical networks utilizing a novel segment-based protection heuristic algorithm called LP (level protection). The proposed scheme exhibits improved performance in terms of blocking probability compared to other traditional segment-based multicast protection schemes, especially when sharing techniques are also utilized. Furthermore, when physical layer impairments are also taken into account for the calculation of the working and protection light-trees, it is shown that the LP technique presents significant improvement in performance compared to the other commonly used protection techniques.
© 2012 OSA
Original Manuscript: January 9, 2012
Revised Manuscript: June 25, 2012
Manuscript Accepted: July 20, 2012
Published: August 23, 2012
T. Panayiotou, G. Ellinas, and N. Antoniades, "Segment-Based Protection of Multicast Connections in Metropolitan Area Optical Networks With Quality-of-Transmission Considerations," J. Opt. Commun. Netw. 4, 692-702 (2012)