CAJ | 학술논문

在采用密集波分复用技术的骨干网中,通过建立动态多粒度业务模型对由大粒度(光纤和波带)和小粒度(波长)组成的三阶多粒度光交叉连接所构成的节点的网络特性(阻塞概率和带宽阻塞比)进行了研究和仿真分析,并由此对三阶多粒度节点的结构参数和网络中的系统参数进行了优化设计.从仿真结果可以看出,所提出来的优化设计方案能够显著的减少节点结构的复杂度并改善阻塞性能,从而减小了网络中设备的规模和成本.
재채용밀집파분복용기술적골간망중,통과건립동태다립도업무모형대유대립도(광섬화파대)화소립도(파장)조성적삼계다립도광교차련접소구성적절점적망락특성(조새개솔화대관조새비)진행료연구화방진분석,병유차대삼계다립도절점적결구삼수화망락중적계통삼수진행료우화설계.종방진결과가이간출,소제출래적우화설계방안능구현저적감소절점결구적복잡도병개선조새성능,종이감소료망락중설비적규모화성본.
A dynamic multi-granularity traffic model is built in the backbone network adopting dense wavelength division multiplexing (DWDM) technology. Furthermore, the blocking performance including blocking probability and bandwidth blocking ratio of the optical network which consists of three-stage multi-granularity optical cross-connects based on coarse granularity (i.e., fiber and band) and fine granularity (i.e., wavelength) is studied. The associated architecture parameters in the three-stage multi-granularity optical cross-connects (MG-OXC) and system parameters in the system are analyzed in detail and optimized by simulations. The proposed optimization design significantly reduces the node complexity and improves the blocking performance of arriving requests, which translates to smaller device size and lower cost in optical networks.