Scientific Computing
Accuracy and Stability of Numerical Algorithms
Accuracy and Stability of Numerical Algorithms
IEEE/ACM Transactions on Networking (TON)
Priority-enabled optical shared protection: An online efficiency evaluation study
Computer Communications
Availability guarantee in survivable WDM mesh networks: A time perspective
Information Sciences: an International Journal
Introducing OMS protection in GMPLS-based optical ring networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Characterization of failures in an operational IP backbone network
IEEE/ACM Transactions on Networking (TON)
Priority-aware optical shared protection: An offline evaluation study
Computer Communications
Optical fiber communication: from transmission to networking
IEEE Communications Magazine - Part Anniversary
Availability analysis of span-restorable mesh networks
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications - Part Supplement
Survivability in optical networks
IEEE Network: The Magazine of Global Internetworking
| Hi-index | 0.00 |
Evaluation of the availability and unavailability of optical connections is necessary for WDM optical networks to make efficient use of optical resources. Network providers will not be welling to upgrade their current protection plans unless these protection strategies are carefully investigated, providing them with optimal tradeoffs between the required protection degree and the corresponding cost. In this paper, a mathematical model based on the combinatorial and probability theories is developed to evaluate the availability and unavailability of protected optical connections in WDM networks employing M:N dedicated protection. This model works with any number of working and protected paths. Several numerical tests have been performed and their results are presented to investigate the availability and unavailability degrees for different number of working and protection paths. Moreover, we use Monte-Carlo simulation to verify the correctness of our mathematical model. Simulation results confirm not only the correctness of the proposed model but also its potential accuracy. The proposed analytical model provides an efficient tool for network providers to assess the anticipated improvement in the network availability by upgrading their survivability schemes to higher protection classes.