IP/DWDM光Internet中的一种公平智能QoS组播路由机制

A Fair and Intelligent QoS Multicast Routing Mechanism in IP/DWDM Optical Internet

QoS(QualityofService)与组播是IP/DWDM光Internet中应该具备的基本能力。本文研究了IP/DWDM光Internet中的公平智能QoS组播路由机制。在所提出的机制中,QoS需求的区间表示形式体现了对柔性与异构QoS的支持;根据微观经济学理论,建立基于Kelly/PSP模型的定价策略,体现组间公平性;使用下游链路均分方法在组成员之间分摊费用,体现组内公平性;基于点火耦合神经网络,建立智能QoS组播路由算法。以上各方面有机结合,构成IP/DWDM光Internet中的公平智能QoS组播路由机制。仿真结果表明,该机制是可行和有效的。

QoS （Quality of Service） and multicast are essential capabilities in IP/DWDM optical Internet. In this paper, a lair and intelligent QoS multicast routing mechanism in IP/DWDM optical Internet is discussed. In the proposed mechanism,QoS requirement is denoted by an range to support the flexible and heterogeneous QoS; according to the microeconomics theory and method,a Kelly/PSP-model-based pri.cing strategy is presented to support the intergroup faimess; the ELSD（Eq ual Link Split Downstream） method is-adopt-ed to ap-portion the cost among group members,thus the intra-group fairness is provided;based on FCNN （Firing Coupled Neural Network）,an intelligent QoS multieast routing algorithm is introduced.Combining the above, a fair and intelligent QoS multicast muting mechanism is established.Simulation results have shown thatthe proposed mechanism is both effective and efficient.