基于多物理层损伤限制的光网络RWA算法研究  

A study of optical network RWA algorithm based on multiple physical layer impairments constraints

作　　者：赵继军[1] 陈曦[1] 王丽荣[2] 

机构地区：[1]河北工程大学信息与电气工程学院,河北邯郸056038 [2]邯郸职业技术学院,河北邯郸056001

出　　处：《光通信技术》2011年第5期4-7,共4页Optical Communication Technology

基　　金：河北省自然科学基金(项目编号:F2010001045)资助;河北省教育厅科学研究计划项目(课题编号:2008110)资助

摘　　要：在透明光网络中,如何在选路过程中自适应地规避物理层损伤进而实现高质量的传输服务是亟待解决的问题。提出了一种面向多物理损伤约束的RWA算法,改进原有损伤感知RWA算法考虑物理损伤单一不够全面的问题,尝试将多个物理损伤作为路径选择的多个约束条件,从而可以选择损伤最小的光路来完成光连接的请求,从而满足未来高传输质量的需求。In transparent optical networks,how to avoid the impact of physical impairment in routing is a problem to be solved urgently.A new kind of RWA algorithm based on multiple physical layer impairments constraints is proposed to improve the issue of considering physical impairment relatively simple,attempt to use multiple physical impairments as multiple constraints,thereby could choose the least impact optical path to accomplish the linking request,meeting the requirement of the higher transmission quality in future networks.

关 键 词：RWA算法 物理层损伤 多约束模型 光信噪比 

分 类 号：TN929.11[电子电信—通信与信息系统]