The streamline effect in OBS networks and its application in load balancing

In this paper, we describe and study a phenomenon unique to bufferless optical burst switched (OBS) networks called the streamline effect. This is the phenomenon wherein bursts within an input stream to a core node only contend with those from other input streams but not among themselves. It causes the burst loss probability at a link to depend strongly on the number of input streams to the link and their relative burst rates. We analyse the streamline effect and provide a burst loss probability formula that is more accurate than the traditionally used Erlang B formula. The formula is then used in a load balancing scheme for reservation-based quality of service (QoS) traffic to give a better link cost function. Through extensive simulation experiments for different traffic scenarios, we show that the proposed load balancing scheme utilising the streamline effect performs better than the shortest path routing scheme and the load balancing scheme without considering the streamline effect.

[1]  George N. Rouskas,et al.  A queueing network model of an edge optical burst switching node , 2003, IEEE INFOCOM 2003. Twenty-second Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE Cat. No.03CH37428).

[2]  Vinod Vokkarane,et al.  Dynamic congestion-based load balanced routing in optical burst-switched networks , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[3]  Hai Le Vu,et al.  Blocking probability for priority classes in optical burst switching networks , 2002, IEEE Communications Letters.

[4]  Chunming Qiao,et al.  Optical burst switching (OBS) - a new paradigm for an Optical Internet^{1} , 1999, J. High Speed Networks.

[5]  Debasish Datta,et al.  Explicit Routing for Traffic Engineering in Labeled Optical Burst-Switched WDM Networks , 2004, International Conference on Computational Science.

[6]  Yijun Xiong,et al.  Control architecture in optical burst-switched WDM networks , 2000, IEEE Journal on Selected Areas in Communications.

[7]  Chunming Qiao,et al.  Traffic statistics and performance evaluation in optical burst switched networks , 2004 .

[8]  Jonathan S. Turner,et al.  Terabit burst switching , 1999, J. High Speed Networks.

[9]  Mehul Motani,et al.  Absolute QoS signalling and reservation in optical burst-switched networks , 2004, IEEE Global Telecommunications Conference, 2004. GLOBECOM '04..

[10]  Hai Le Vu,et al.  Performance analyses of optical burst-switching networks , 2003, IEEE J. Sel. Areas Commun..

[11]  Chunming Qiao,et al.  QoS performance of optical burst switching in IP-over-WDM networks , 2000, IEEE Journal on Selected Areas in Communications.

[12]  Jin Cao,et al.  The Effect of Statistical Multiplexing on the Long-Range Dependence of Internet Packet Traffic , 2001 .

[13]  Kee Chaing Chua,et al.  Load balancing using adaptive alternate routing in IP-over-WDM optical burst switching networks , 2003, OptiComm: Optical Networking and Communications Conference.

[14]  Lemin Li,et al.  Load-balancing contention resolution in LOBS based on GMPLS , 2003, Proceedings of the Fourth International Conference on Parallel and Distributed Computing, Applications and Technologies.

[15]  QiaoChunming,et al.  Optical burst switching (OBS) - a new paradigm for an optical Internet , 1999 .