研究目的
To propose a new protocol for non-blocking Optical Burst Switched networks and compare its blocking probabilities with existing protocols like JET, FPP, LAUC-VF, and MGDP.
研究成果
The proposed SBFPP protocol significantly reduces dropping probability and increases effective bandwidth utilization in Optical Burst Switched networks, as demonstrated by simulation results. It offers a viable solution to the fairness and blocking issues present in existing protocols like JET, FPP, LAUC-VF, and MGDP.
研究不足
The protocol's effectiveness is dependent on the storage capacity at the nodes. Blocking may still occur if the number of dropping bursts exceeds the storage limit. The study does not detail the scalability of the proposed protocol in very large networks.
1：Experimental Design and Method Selection:
The study proposes a new protocol named 'Store When Blocked After Fair Prioritized Preemption (SBFPP)' for Optical Burst Switched networks to avoid blocking. It compares the performance of this protocol with existing ones through simulation.
2：Sample Selection and Data Sources:
The simulation uses a bidirectional fiber link with W wavelengths and assumes bursts arrive at a node following a Poisson distribution process.
3：List of Experimental Equipment and Materials:
The study mentions the use of OMNET++ for simulation but does not specify other equipment or materials.
4：Experimental Procedures and Operational Workflow:
The protocol involves storing data bursts after solving fairness problems in the network instead of blocking them, with priority given based on the number of hopes passed, remaining hopes, and initial offset time.
5：Data Analysis Methods:
The performance is evaluated in terms of dropping probability, unfairness, and effective bandwidth utilization, with results presented graphically.
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