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In this paper, the burst drop policy based on Hop-Count-Factor (HCF) is proposed in the core nodes of OBS networks. The proposed HCF Drop Policy (HCFDP) takes the fairness of the network resources reservation into account and gives the burst with the larger HCF the higher priority in the contention. We also analyze the retransmission scheme in OBS networks theoretically. When HCFDP is combined with...
In transport control protocol (TCP) over optical burst switching (OBS) networks, TCP window size and OBS parameters, including assembly period and burst dropping probability, will impact the network performance. In this paper, a parameter window data dropping probability(WDDP), is defined to analyze the impact of the assembly and the burst loss on the network performance in terms of the round trip...
With the evolvement of grid applications, the need for user controlled network infrastructure is apparent in order to support emerging dynamic and interactive services. In this paper, a novel fast light-path set-up protocol, named forward reserve backward release protocol, is proposed to meet these requirements. The proposed protocol addresses the signaling over head for dynamic wavelength networks...
The proposed mechanism includes a novel drop policy based on hop number in core nodes and multiple thresholds in edge nodes. The theoretical analyses and simulation show the mechanism can improve the OBS network performance.
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