摘要
研究不同的路由和波长分配(RWA)方法对无波长变换WDM网络P圈优化性能的影响.提出了用负载均衡的方法对各波长层的工作容量进行均衡,以降低网络总容量.分别研究了动态分层通用RWA(DL-GRWA)、最短路径RWA(SP-RWA)、动态分层负载均衡(DL-LB)、最短路径负载均衡(SP-LB)、固定波长负载均衡(FW-LB)5种方法对网络总容量的影响.仿真发现,无论何种RWA方法,随着圈最大跳数限制的变大,网络总容量都逐渐降低,其中SP-LB方法所需要的网络总容量最小.
The influence of different RWA （Routing and Wave optimal performance of p cycles in WDM networks without wave ength Assignment） approaches on the ength conversion was investigated. The method of load balanced was proposed to achieve nearly uniform distribution of working capacity over the wavelength layers in order to reduce total network capacity. Five RWA approaches were considered, including Dynamic Layered Generalized RWA （DL-GRWA）, Shortest Path RWA （SP-RWA）, Dynamic Layered with load balanced （DIM.B）, Shortest Path with load balanced （SP-LB） and Fixed Wavelength with load balanced （FW-LB）. Simulation results show that by means of every approach the total network capacity decreases with the increase of the maximum allowed cycle hops. Among them,SP-LB approach can minimize the total network capacity.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2006年第11期1742-1745,共4页
Acta Photonica Sinica
关键词
波分复用
P圈
路由和波长分配
整数线性规划
Wavelength Division Multiplexing （WDM）
p cycles
Routing and Wavelength Assignment （RWA）
Integer Linear Programming （ILP）
