多粒度光网络中动态路由与波长分配算法  

DYNAMIC ROUTING AND WAVELENGTH ASSIGNMENT IN MULTI-GRANULARITY OPTICAL NETWORKS

作　　者：陈锦源 

机构地区：[1]广州体育学院计算机应用教研室,广东广州510500

出　　处：《计算机应用与软件》2008年第12期85-87,92,共4页Computer Applications and Software

基　　金：广东省自然科学基金资助项目(05011896)

摘　　要：通过分析多粒度光网络路由与波长分配的特点,针对WAPG算法的波长碎片问题,通过定义5种不同的逻辑链路权重,修改了WAPG算法的波长权重标注方法,达到减少波长碎片的目的。仿真结果表明,提出的修正算法有效地减少了多粒度光网络中的波长转换数,降低网络的阻塞概率,同时节省网络资源。By analyzing the characters of routing and wavelength assignment of multi-granularity optical networks, in the paper it aims at the problem of wavelength fragments in WAPG （ Waveband Assignment with Path-Graph） algorithm, and by defining five types logical link weight, the way of labelling wavelength weight in WAPG algorithm has been modified for achieving the goal of reducing the number of wave- length fragments. Simulation results indicate that the modified algorithm effectively reduces the number of used wavelength converters in multigranularity optical networks and debases the networks blocking probability, as well as saves some networks resource.

关 键 词：光网络 多粒度交换 动态路由和波长分配 波长复用 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] TN929.1[自动化与计算机技术—计算机科学与技术]