Protecting Multicast Sessions in WDM Networks with Sparse-Splitting Constraints

  • Wang, Xiong (Key Lab of Broadband Optical Fiber Transmission and Communication Networks, the University of Electronic Science and Technology of China) ;
  • Wang, Sheng (Key Lab of Broadband Optical Fiber Transmission and Communication Networks, the University of Electronic Science and Technology of China) ;
  • Li, Lemin (Key Lab of Broadband Optical Fiber Transmission and Communication Networks, the University of Electronic Science and Technology of China)
  • Received : 2007.01.18
  • Published : 2007.08.31

Abstract

In this letter, we study the multicast protection problem in sparse-splitting wavelength-division multiplexing (WDM) optical network, and propose a novel multicast protection algorithm called the shared source-leaf path-based protection (SLPP) algorithm. Unlike the proposals in previous studies, the backup paths derived by SLPP can share wavelength with the primary tree in sparse-splitting WDM networks. Simulations are used to evaluate the effectiveness of the SLPP algorithm.

Keywords