灵活透明光网络的自适应传输控制策略  

Adaptive Transmission Control Strategy in Agile and Transparent Optical Network

作　　者：张杰[1] 张华[1] 

机构地区：[1]北京邮电大学 光通信与光波技术教育部重点实验室,北京100876

出　　处：《中兴通讯技术》2008年第4期1-4,10,共5页ZTE Technology Journal

基　　金：国家高技术研究发展计划资助项目(863计划)(2006AA01Z244);国家自然科学基金资助项目(60772022)

摘　　要：灵活透明光网络是传送网的发展演进方向之一。目前,智能传送网的协议标准主要用于选路与交换过程的控制,若在自动交换光网络(ASON)架构基础上引入对传送平面物理特性的智能控制功能,基于损伤感知对控制平面进行功能扩展,可以实现端到端传输质量最优化。传输自适应的控制过程可以用可调节补偿单元信息搜集、链路传输性能监测、自适应调节计算、可调节补偿单元控制等4个步骤来实现。支持光通路自适应传输过程的协议扩展可采用分布式路由方案和分布式信令方案两种解决方案。Agile and transparent optical network is one of the significant directions for the evolution of Optical Transport Network （OTN）. Presently, the protocol of smart transport network is mainly used on the control of routing and switching processes. A smart control function for the physical characteristics of transport plane is proposed based on the architecture of Automatically Switched Optical Network （ASON）. Expanding the control plane functions considering physical impairments could realize the optimization of end-to-end transmission. The basic control procedure of adaptive transmission includes four steps： searching the information of adjustable compensated unit, monitoring the transmission of link, adjusting and calculating adaptively, and controlling the adjustable compensated unit. There are two solutions to expand the protocol that supports tightpath adaptive transmission, distributed routers solution, and distributed signals solution.

关 键 词：透明光网络 灵活 损伤感知 自适应传输 

分 类 号：TN929.1[电子电信—通信与信息系统]