Journal of High Speed Networks - Special issue on optical networking
PI-OBS: a parallel iterative optical burst scheduler for OBS networks
HPSR'09 Proceedings of the 15th international conference on High Performance Switching and Routing
A practical approach to scheduler implementation for optical burst/packet switching
ONDM'10 Proceedings of the 14th conference on Optical network design and modeling
Design issues of optical IP routers for Internet backbone applications
IEEE Communications Magazine
Control architecture in optical burst-switched WDM networks
IEEE Journal on Selected Areas in Communications
Optical routing of asynchronous, variable length packets
IEEE Journal on Selected Areas in Communications
Efficient burst scheduling algorithms in optical burst-switched networks using geometric techniques
IEEE Journal on Selected Areas in Communications
Optical burst switching: a new area in optical networking research
IEEE Network: The Magazine of Global Internetworking
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The most promising solutions to increase bandwidth efficiency in IP over DWDM networks are represented by Optical Packet and Burst Switching. Due to the statistical multiplexing approach adopted, these paradigms must deal with packet/burst contentions at the node output channels and require the use of scheduling algorithms to optimize resource assignment and bandwidth utilization. However, very strict time constraints on the scheduling operations are imposed by the extremely high bit rates used, making the actual feasibility of the scheduler control logic a major implementation issue common to both technologies. This paper provides a specific formulation of the scheduling problem that can be used as the basis for the practical design of a fast and versatile scheduler, capable of implementing many algorithms found in literature. A possible implementation of the scheduler sub-functions, mainly based on the use of combinatorial operations, is also discussed and supported by the simulation of the hardware implementation time response, with results that demonstrate the feasibility of the proposed solution.