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Optical Burst Switching (OBS) is a switching technique that was proposed as a hybrid switching technology to support the next generation Internet. In OBS, incoming IP packets are assembled into super-sized packets called data bursts. Burst contention is a well-known challenging problem in Optical Burst Switching (OBS) networks. Burst contention can be resolved using several approaches, such as wavelength conversion, buffering based on Fiber Delay Line (FDL) or deflection routing Retransmission technique is used to reduce the Burst Loss Ratio (BLR) by deflecting dropped bursts.
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