【摘要】 在具有多速率级别连接请求的WDM网络中,通过为较高速率的请求预留更多的波长集合,结合网络节点对较低速率业务更强的输导能力,解决网络的阻塞公平性和全网的流量问题。在中国教育科研网的仿真实验,本文的策略比First-fit算法取得了更好的阻塞公平性能,并接纳了更多的网络流量。当负载为170Erlang时,多接纳的流量约为12%。更多还原

【Abstract】 In this paper,a novel wavelength assignment scheme for WDM networks,which aims at guaranteeing the requests blocking fairness and at the same time,ensuring the networks throughput,was proposed.Our research shows that the proposed wavelength assignment strategies-reserving more wavelengths for higher priority requests,associated with the traffic grooming capability of the network node,can guarantee the network throughputs and traffic blocking faimess simultaneously.Simulation results obtained in the CERNETlike topology indicate that the proposed mechanism is more effective than Firstfit algorithm in terms of metrics such as blocking fairness and the networks throughput.And the time the traffic loads 170 Erlang,the proposed scheme can access 12 % more throughput than Firstfit algorithm.更多还原