Provisioning of Survivable Multicast Sessions in Wavelength-Routed Optical Networks With Scheduled Traffic

Provisioning survivable multicast sessions in wavelength-routed optical networks has already been studied under static or dynamic traffic. However, in many practical cases, customers tend to require a large bandwidth at a specified time interval. Scheduled traffic model, in which the setup and teardown times are known in advance or vary in a specified larger time window, is more appropriate to characterize this kind of traffic. In this paper, two scheduled traffic models are formulated and investigated for multicast protection in wavelength-routed optical networks, namely, Fixed Scheduled Traffic Model (FSTM) and Sliding Scheduled Traffic Model (SSTM). With the guaranteed 100% restorability against any single link failure, the FSTM formulation can achieve a global minimum cost for establishing all multicast sessions. A two-step optimization approach is further proposed to deal with the survivable multicast provisioning problem under SSTM. By optimizing the network resources jointly in space and time, survivable multicast sessions can be provisioned at much lower costs.

[1]  Biswanath Mukherjee,et al.  Protecting multicast sessions in WDM optical mesh networks , 2003 .

[2]  Sheng Wang,et al.  Achieving Shared Protection for Dynamic Multicast Sessions in Survivable Mesh WDM Networks , 2007, IEEE Journal on Selected Areas in Communications.

[3]  Emmanuel Dotaro,et al.  Routing and wavelength assignment of scheduled lightpath demands , 2003, IEEE J. Sel. Areas Commun..

[4]  Wensheng Zhang,et al.  Intelligent p-Cycle Protection for Multicast Sessions in WDM Networks , 2008, 2008 IEEE International Conference on Communications.

[5]  Bin Wang,et al.  On survivable service provisioning in WDM optical networks under a scheduled traffic model , 2005, GLOBECOM '05. IEEE Global Telecommunications Conference, 2005..

[6]  Chun-Kit Chan,et al.  Multicast protection in WDM optical networks with scheduled traffic , 2009, 2009 35th European Conference on Optical Communication.

[7]  Lemin Li,et al.  Algorithm for protecting light-trees in survivable mesh wavelength-division-multiplexing networks , 2006 .

[8]  Biswanath Mukherjee,et al.  Light trees: optical multicasting for improved performance in wavelength routed networks , 1999, IEEE Commun. Mag..

[9]  Biswanath Mukherjee,et al.  Provisioning of survivable multicast sessions against single link failures in optical WDM mesh networks , 2003 .

[10]  Georgios Ellinas,et al.  Dynamic Provisioning of Survivable Heterogeneous Multicast and Unicast Traffic in WDM Networks , 2006, 2006 IEEE International Conference on Communications.

[11]  Arunita Jaekel.  OPN09-02: Lightpath Scheduling and Allocation Under a Flexible Scheduled Traffic Model , 2006, IEEE Globecom 2006.