Journal of High Speed Networks - Special issue on optical networking
Optical burst switching (OBS) - a new paradigm for an optical Internet
Journal of High Speed Networks - Special issue on optical networking
Optical networks: a practical perspective
Optical networks: a practical perspective
Algorithms for burst rescheduling in WDM optical burst switching networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Approaches to optical Internet packet switching
IEEE Communications Magazine
Control architecture in optical burst-switched WDM networks
IEEE Journal on Selected Areas in Communications
QoS performance of optical burst switching in IP-over-WDM networks
IEEE Journal on Selected Areas in Communications
Optical routing of asynchronous, variable length packets
IEEE Journal on Selected Areas in Communications
On design of bandwidth scheduling algorithms for multiple data transfers in dedicated networks
Proceedings of the 4th ACM/IEEE Symposium on Architectures for Networking and Communications Systems
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Optical burst switching (OBS) is a promising optical networking paradigm for efficient transport of bursty IP traffic over wavelength division multiplexing (WDM) optical Internet networks. In OBS, the header of a burst is sent in advance of the data burst to reserve a wavelength channel at each optical switching node along the path. The nodes use a scheduling algorithm to assign wavelengths to incoming bursts. Our work is motivated from the observation that existing scheduling algorithms assign a wavelength to a burst when its header arrives at the node. Thus, information about other bursts whose headers arrive later is not available when the scheduling decision is made. This leads to sub-optimal scheduling decisions and unnecessary burst dropping. The key idea in our proposed algorithm, Ordered Scheduling, is to defer making the scheduling decision until just before the burst arrival in order to have full knowledge about other bursts. The effectiveness of the proposed algorithm is studied through simulation and the computational complexity and signalling overhead are analysed.