Dynamic circuits with lightpath switching over wavelength routed networks

In this paper we examine provisioning holding-time-aware dynamic circuits using a technique called lightpath switching (LPS). Instead of using the same lightpath for the duration of the data transmission, in LPS we allow a request to switch lightpaths over time. Data transmission may begin on one lightpath from the source to destination, then at a later time a different lightpath from the source to the destination may be selected to continue data transmission. The lightpath switches are transparent to the user and are managed by the network. Allowing LPS creates a number of segments that can use independent lightpaths. We compare the performance of traditional routing and wavelength (RWA) assignment to routing and wavelength assignment with LPS. We show that LPS can significantly reduce blocking compared to traditional RWA. 1

[1]  Biswanath Mukherjee,et al.  Holding-Time-Aware Dynamic Traffic Grooming , 2008, IEEE Journal on Selected Areas in Communications.

[2]  Biswanath Mukherjee,et al.  Dynamic Routing of Connections with Known Duration in WDM Networks , 2009, GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference.

[3]  Sumit Naiksatam,et al.  Elastic reservations for efficient bandwidth utilization in LambdaGrids , 2007, Future Gener. Comput. Syst..

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

[5]  W. Johnston,et al.  A User Driven Dynamic Circuit Network Implementation , 2008, 2008 IEEE Globecom Workshops.

[6]  J. Y. Yen,et al.  Finding the K Shortest Loopless Paths in a Network , 2007 .

[7]  Reuven Cohen,et al.  Path Switching and Grading Algorithms for Advance Channel Reservation Architectures , 2009, IEEE/ACM Transactions on Networking.

[8]  H. T. Mouftah,et al.  Toward automated provisioning of advance reservation service in next-generation optical internet , 2006, IEEE Communications Magazine.

[9]  Ying Chen,et al.  Resource allocation strategies for a non-continuous sliding window traffic model in WDM networks , 2009, 2009 Sixth International Conference on Broadband Communications, Networks, and Systems.