Optical communication system will continue to play significant role in the development of emerging network infrastructure. The wavelength division multiplexing and subsequently optical burst switching networks have received a lot of attention on the research community in the recent years. Optical Burst Switching (OBS) has advantages of both Optical Packet Switching (OPS) and Optical Circuit Switching (OCS). Also it has the capability of offline signaling. It is also called as next generation internet technology. In this paper, we are going to introduce optical burst switching in details and scheduling algorithms we are going to show theoretically some scheduling approaches with the basic Latest Available Unused Channel Rescheduling Algorithm (LAUC). Advantage of doing so is that we can avoid the possible use of optical buffers to delay the bursts which are going to drop because of congested situation at any node and reducing the cost of Fiber Delay Lines FDLs which can be very high in terms of money. The algorithms are given and described with the help of example.

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Optical Burst Switching (OBS) Optical Transport Networks Optical Packet Switching (OPS) Optical Circuit Switching (OCS)