摘要
由于将虚拟级联技术引入弹性光网络可以提高网络资源利用率,同时也由于不同调制格式下光通道需要的频谱资源不同,文章针对CO-OFDM弹性光网络提出了一种支持子频带虚拟级联的自适应调制频谱分配算法。理论分析和仿真结果表明,该算法能够有效提高频谱资源利用率,降低网络的平均业务阻塞率。
The introduction of traditional Virtual Concatenation （VCAT） technology into Elastic Optical Net-work （EON） has been proved significantly improving of network capacity utilization. A VCAT supported adaptive modulation and spectrum allocation algorithm for EON is proposed. Theoretical analysis and numerical simulation results show that the algorithm can effectively improve the spectrum resource utilization and reduce the average rate of the network traffic blocking.
出处
《光通信技术》
北大核心
2016年第2期5-7,共3页
Optical Communication Technology
关键词
弹性光网络
虚级联
自适应调制
频谱分配
业务阻塞率
elastic optical network, VCAT, adaptive modulation, spectrum allocation, network blocking probability
