多跳波分复用环网中的业务疏导  

Traffic Grooming in Multi-hop WDM rings

作　　者：刘逢清[1] 钱炎琛[1] 冯翰林[1] 

机构地区：[1]南京邮电大学光电工程学院,江苏南京210046

出　　处：《南京邮电大学学报（自然科学版）》2011年第4期72-78,共7页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：南京邮电大学人才引进项目(NY207143)资助项目

摘　　要：采用整数线性规划算法和启发式算法对均匀和非均匀业务模式下WDM(Wavelength Division Multiplexing)网络的业务疏导问题进行研究,优化目标为最小化给定业务矩阵情况下所需光收发机和波长数。以环网为例进行了数值仿真,数值结果验证了启发式算法的有效性,并表明随着环网规模的增大,通过疏导减少的光通道数越来越大,疏导的效果也越来越明显。To investigate the problem of traffic grooming in WDM optical networks for both uniform and non-uniform traffic patterns,an ILP（Interger Linear Programming） algorithm and a heuristic algorithm are presented.The optimization objective of traffic grooming is to minimize the number of optical transceivers and wavelengths for a given traffic matrix.Taking WDM rings as examples,numerical results derived verify the effectiveness of the heuristic algorithm.It also demonstrates that the bigger the scale of ring networks,the more lightpaths reduced by traffic grooming,and the more obvious the effect of traffic grooming..

关 键 词：业务疏导 多跳 WDM 环网 

分 类 号：TN913.7[电子电信—通信与信息系统]