Joint routing and wavelength allocation algorithm for stealth and ordinary services in optical transport networks

In this paper, we develop two joint routing and resource allocation algorithms for stealth and ordinary services in optical networks. The transmission of stealth service needs to be hidden in ordinary services to achieve a better performance in privacy. Two heuristic algorithms construct paths for stealth and ordinary services base on the different routing methods. The proposed algorithms improve the success rate of optical steganography by slightly increasing more wavelength consumption.