In this paper,a new architecture of optical networks—the optical network based on server system is considered.From the point of this new architecture,the network can be modeled as a server system with three type serv...In this paper,a new architecture of optical networks—the optical network based on server system is considered.From the point of this new architecture,the network can be modeled as a server system with three type servers—the access server,the node server and the link server. The network performances such as cost,energy consume and network capacity can be affected by the capability of these three type servers.New ILP formulations are proposed to analyze the network capacity under two types of node severs,with and without wavelength converter.Computer simulations are conducted to evaluate the effectiveness of these new formulations.The study has shown that the network can achieve the same throughput under the two types of node servers and the network throughput increases when the maximum allowed variation increases.展开更多
In this paper,we present a new self-similar traffic shaping mechanism and investigate its effect on the output traffic characteristics and network performance under self-similar traffic.Simulation results show that ou...In this paper,we present a new self-similar traffic shaping mechanism and investigate its effect on the output traffic characteristics and network performance under self-similar traffic.Simulation results show that our proposed mechanism can not only effectively reduce the burstiness of input traffic,but also perform better than the non-traffic shaping scheme in the terms of packet-loss rate and blocking probability.展开更多
基金supported by China Post-doctoral Science Foundation funded project(20070420013)Open Fund of National Laboratory on Local Fiber-Optic Communication Networks & Advanced optical Communication Systems,(Pe-king University),PRChinaGuangxi Science Foundation(0731003)
文摘In this paper,a new architecture of optical networks—the optical network based on server system is considered.From the point of this new architecture,the network can be modeled as a server system with three type servers—the access server,the node server and the link server. The network performances such as cost,energy consume and network capacity can be affected by the capability of these three type servers.New ILP formulations are proposed to analyze the network capacity under two types of node severs,with and without wavelength converter.Computer simulations are conducted to evaluate the effectiveness of these new formulations.The study has shown that the network can achieve the same throughput under the two types of node servers and the network throughput increases when the maximum allowed variation increases.
基金Supported by the National Natural Science Foundation of China(No.60132020 ,60302026)
文摘In this paper,we present a new self-similar traffic shaping mechanism and investigate its effect on the output traffic characteristics and network performance under self-similar traffic.Simulation results show that our proposed mechanism can not only effectively reduce the burstiness of input traffic,but also perform better than the non-traffic shaping scheme in the terms of packet-loss rate and blocking probability.
