Starting from centralized control model used in wavelength routed optical burst switching network, a distributed control model and correspondent wavelength resource reservation protocol are proposed in this paper. Two...Starting from centralized control model used in wavelength routed optical burst switching network, a distributed control model and correspondent wavelength resource reservation protocol are proposed in this paper. Two Quality- of-Service （QoS） methods, Based on the resourcereservation protocol, are discussed. Also, computer simulation is implemented to investigate the performance of the newly proposed reservation protocol and QoS methods. Simulation results demonstrate that the QoS methods can efficiently provide different level service quality to traffic＂ with different priorities. Furthermore, performances of the two QoS methods are compared concerning the QoS distinguished level, burst lost probability and implementation difficulty. It has been shown that the newly propose reservation protocol and QoS methods is a high qualified candidate for the future OBS networks.展开更多
We propose the hybrid optical burst switching(HOBS),and investigate the HOBS-based ring topology with numerical simulation.Results indicate that the packet loss ratio in HOBS is much less than that in optical burst sw...We propose the hybrid optical burst switching(HOBS),and investigate the HOBS-based ring topology with numerical simulation.Results indicate that the packet loss ratio in HOBS is much less than that in optical burst switching(OBS)and its performance depends on some pa-rameters such as the packet proportion,the electronic buffer size and the processing speed in the node.展开更多
文摘Starting from centralized control model used in wavelength routed optical burst switching network, a distributed control model and correspondent wavelength resource reservation protocol are proposed in this paper. Two Quality- of-Service （QoS） methods, Based on the resourcereservation protocol, are discussed. Also, computer simulation is implemented to investigate the performance of the newly proposed reservation protocol and QoS methods. Simulation results demonstrate that the QoS methods can efficiently provide different level service quality to traffic＂ with different priorities. Furthermore, performances of the two QoS methods are compared concerning the QoS distinguished level, burst lost probability and implementation difficulty. It has been shown that the newly propose reservation protocol and QoS methods is a high qualified candidate for the future OBS networks.
文摘We propose the hybrid optical burst switching(HOBS),and investigate the HOBS-based ring topology with numerical simulation.Results indicate that the packet loss ratio in HOBS is much less than that in optical burst switching(OBS)and its performance depends on some pa-rameters such as the packet proportion,the electronic buffer size and the processing speed in the node.
