Out-of-band monitoring has been proposed as an effective approach for link failure localization in all-optical Wavelength Division Multiplexing (WDM) mesh networks. In this paper, the recent research related to out-of-band monitoring is overviewed. We define and formulate the related optimization problems under several design constraints, summarize the analytical results and discuss the related heuristic algorithms.
- Failure localization
- Optical networks
ASJC Scopus subject areas
- Electrical and Electronic Engineering