摘要
在频谱灵活光网络中,为了解决网络故障概率与光纤链路负载均衡问题,建立了故障概率与光纤链路负载均衡联合计算与评估模型,提出了故障概率与光纤链路负载均衡联合优化方法。仿真结果表明,与传统方法相比,当不考虑保护带宽时,所提故障概率与光纤链路负载均衡联合优化方法降低了69.8%网络阻塞率,减少了45.3%频谱资源占用率,减少了41.9%平均故障概率,实现了频谱灵活光网络的故障概率与光纤链路负载均衡联合优化方法。
In order to gain insight into the relationship between the failure probability and the spectrum efficiency, both failure probability(FP) and load balancing(LB) were attempted to minimize in flexible bandwidth optical networks. An optimized FP-LB algorithm was developed to reduce failure probability and to improve the spectrum efficiency, and a traditional algorithm was further introduced for comparison in flexible bandwidth optical networks. Simulation results show that the optimized FP-LB algorithm reduces 69.8% blocking probability, 45.3% spectrum occupancy rate, and 41.9% average failure probability compared to the traditional algorithm. Obviously, the optimized FP-LB algorithm achieves the joint optimization of both failure probability and load balancing.
作者
陈伯文
符小东
雷雨
CHEN Bowen;FU Xiaodong;LEI Yu(School of Electronic and Information Engineering, Soochow University, Suzhou 215006, China;Zhongtian Broadband Technology, Nantong 226000, China)
出处
《通信学报》
EI
CSCD
北大核心
2019年第9期136-144,共9页
Journal on Communications
基金
国家自然科学基金资助项目(No.61701332)
江苏省自然科学基金资助项目(No.BK20160326)
江苏省高校自然科学研究基金资助项目(No.16KJB510041)~~
关键词
频谱灵活光网络
故障概率
光纤链路负载均衡
联合优化
flexible bandwidth optical network
failure probability
fiber-link load balancing
joint optimization