Abstract

Recently, the neural network approach for the blocking probability evaluation on optical networks was proposed, in which the inputs of the neural network were the optical network parameters and the output was the blocking probability of the optical network. The numerical results showed that its evaluation speed of the blocking probability was thousands of times faster than that of the discrete event simulator. However, the existing approach had two drawbacks. First, when the blocking probability was small, there was a significant approximation error due to the high dynamic range of the blocking probability. Second, the single-hidden-layer feedforward network model was used, which needed some time-consuming training algorithms to learn the parameters of hidden nodes, such as backpropagation. To solve these problems, this paper proposes to use the mean squared error of the log blocking probability as the training objective and use the extreme learning machine (ELM) framework for the training. Our numerical results show that the blocking probability estimated by our training objective is much more accurate than that of the existing approach, and it is obtained efficiently due to the greatly simplified training procedure offered by the ELM.

© 2017 Optical Society of America

Methodology to Obtain a Fast and Accurate Estimator for Blocking Probability of Optical Networks

Danilo R. B. de Araújo, Carmelo J. A. Bastos-Filho, and Joaquim F. Martins-Filho
J. Opt. Commun. Netw. 7(5) 380-391 (2015)

Bounds of the Overflow Priority Classification for Blocking Probability Approximation in OBS Networks

Shuo Li, Meiqian Wang, Eric W. M. Wong, Vyacheslav Abramov, and Moshe Zukerman
J. Opt. Commun. Netw. 5(4) 378-393 (2013)

Blocking Probability Analysis of Circuit-Switched Networks With Long-Lived and Short-Lived Connections

Meiqian Wang, Shuo Li, Eric W. M. Wong, and Moshe Zukerman
J. Opt. Commun. Netw. 5(6) 621-640 (2013)

Using the Network Load for Admission Control in OBS Networks: A Multilink Approach

Igor M. Moraes and Otto Carlos M. B. Duarte
J. Opt. Commun. Netw. 2(3) 137-147 (2010)

Routing Scheme for OBS Networks

Subhrabrata Choudhury, Vivek Nair, and A. K. Mal
J. Opt. Commun. Netw. 4(10) 799-811 (2012)