Performance Model of Multichannel Deflection-Routed All-Optical Networks With Packet Injection Control

Abstract

Deflection routing is a feasible approach to resolve the output contention problem in packet-switched networks when buffering of packets is not practical. In this paper, we investigate the performance of multichannel deflection-routed networks with no packet injection control, strict packet injection control, and a simple token-bucket-based packet injection control. The analytical performance models of multichannel deflection-routed networks with strict packet injection control are derived. Simulation results show that the analytical models can accurately predict the performance regardless of the network topology, number of channels, and packet injection control methods. We observed that the end-to-end throughput-delay and the packet re-transmission performance at sources can be largely improved by using simple packet injection control mechanisms such as the proposed token-bucket-based method.

Joint resource optimization and flexible QoS provision using hybrid optical core node architecture

“…Several switching technologies utilize this bandwidth to assure all-optical transmission with the required quality of service (QoS). Among them, OCS (optical circuit switching), OBS (optical burst switching), OPS (optical packet switching), and OLS (Optical label switching) are presented [ 2 ]. The inappropriate OCS control plane cannot efficiently utilize the provided lightpath resource.…”