1. Performance of Optical Burst Swatching Techniques in Multi-Hop Networks Byung-Chul Kim, You-Ze Cho, Jong-Hyup Lee, young-Soo Choi, and Doug Montgomery

2. Burst Transmission in OBS

3. Characteristics of The OT and FDL-based Scheme OT-based Scheme FDL-based scheme Routing information requirements at source node YesNo FDL requirements at core nodeNoYes Protection/restoration complexityHighLow

4. Classification of Wavelength Reservation Scheme for OBS Compensation for the processing time of the control packet OT-based scheme FDL-based scheme Channel reservation Immediate reservation JITTerabit burst switching Delayed reservation JET

5. Path Length Priority Effect in OT-based Scheme

6. The FDL/DR with HPI Scheme

7. Simulation Model

8. Comparison of The Burst Blocking Probability

9. Burst Block Probability at Each Hop

10. Cumulative Burst Blocking Probability

11. Throughput

12. Conclusion In this paper, the authors classified the wavelength reservation mechanisms of OBS and investigated the path length priority effect of the OT/DR-based scheme. A novel FDL/DR with HPI scheme is proposed to improve the end-to-end throughput by increasing the priority of bursts hop-by-hop using the input FDLs at each node.