An evaluation of distributed wavelength provisioning in WDM optical networks with sparse wavelength conversion

Distributed wavelength provisioning is becoming one of the most important technologies for supporting next-generation optical networks. This paper describes the evaluation of the performance of distributed wavelength provisioning in wavelength-division-multiplexing (WDM) optical networks with sparse wavelength conversion (i.e., where wavelength conversion is available at only a subset of network nodes). Using the well-known destination-initiated reservation method as a case study, a highly accurate analytical model supported by comprehensive simulation validation is proposed. Both analytical and simulation results show that, in optical networks with distributed wavelength provisioning, sparse wavelength conversion still helps to significantly lower the connection-blocking probabilities. However, unlike that in centralized wavelength provisioning, sparse wavelength conversion may not easily achieve nearly the same performance as that of full wavelength conversion, especially under light traffic loads. This paper evaluates how the potential contribution of sparse wavelength conversion depends on different factors, such as the number of wavelength converters, the number of wavelength channels per fiber, the burstiness of traffic loads, and the network size, and discusses the influence of the signaling scheme.

[1]  Imrich Chlamtac,et al.  Lightpath communications: an approach to high bandwidth optical WAN's , 1992, IEEE Trans. Commun..

[2]  Kumar N. Sivarajan,et al.  Blocking in all-optical networks , 2004, IEEE/ACM Transactions on Networking.

[3]  M. Duser,et al.  Analysis of a dynamically wavelength-routed optical burst switched network architecture , 2002 .

[4]  Ling Li,et al.  Dynamic wavelength routing using congestion and neighborhood information , 1999, TNET.

[5]  Vincent W. S. Chan,et al.  All-Optical Network Consortium - Ultrafast TDM Networks (Invited Paper) , 1996, IEEE J. Sel. Areas Commun..

[6]  Jaafar M. H. Elmirghani,et al.  All-optical wavelength conversion: technologies and applications in DWDM networks , 2000, IEEE Commun. Mag..

[7]  Jason P. Jue,et al.  An adaptive routing algorithm for wavelength-routed optical networks with a distributed control scheme , 2000, Proceedings Ninth International Conference on Computer Communications and Networks (Cat.No.00EX440).

[8]  Armando N. Pinto,et al.  Optical Networks: A Practical Perspective, 2nd Edition , 2002 .

[9]  Byrav Ramamurthy,et al.  Wavelength conversion in WDM networking , 1998, IEEE J. Sel. Areas Commun..

[10]  Pierre A. Humblet,et al.  Models of Blocking Probability in All-Optical Networks with and Without Wavelength Changers , 1995, IEEE J. Sel. Areas Commun..

[11]  George N. Rouskas,et al.  A path decomposition approach for computing blocking probabilities in wavelength-routing networks , 2000, TNET.

[12]  Jason P. Jue,et al.  Analysis of blocking probability for connection management schemes in optical networks , 2001, GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270).

[13]  Keith W. Ross,et al.  Computing approximate blocking probabilities for large loss networks with state-dependent routing , 1993, TNET.

[14]  Imrich Chlamtac,et al.  Blocking analysis of dynamic lightpath establishment in wavelength-routed networks , 2002, 2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333).

[15]  Chunming Qiao,et al.  Efficient distributed control protocols for WDM all-optical networks , 1997, Proceedings of Sixth International Conference on Computer Communications and Networks.

[16]  Adrian Segall,et al.  Distributed network control for optical networks , 1997, TNET.

[17]  Suresh Subramaniam,et al.  Converter placement in wavelength routing mesh topologies , 2000, 2000 IEEE International Conference on Communications. ICC 2000. Global Convergence Through Communications. Conference Record.

[18]  Imrich Chlamtac,et al.  A distributed signaling scheme for provisioning dynamic traffic in wavelength-routed networks , 2003, OptiComm: Optical Networking and Communications Conference.

[19]  Lou Berger,et al.  Generalized Multi-Protocol Label Switching (GMPLS) Signaling Functional Description , 2003, RFC.

[20]  Suresh Subramaniam,et al.  All-optical networks with sparse wavelength conversion , 1996, TNET.

[21]  Kai-Yeung Siu,et al.  New dynamic algorithms for shortest path tree computation , 2000, TNET.