频谱灵活光网络中基于带宽压缩的柔性保护技术  

Soft protection based on bandwidth compression in flexible spectrum optical networks

作　　者：李晨曦[1] 刘英挺[1] 毛杰[1] 潘莹[2] 金紫莲 赵永利[2] 

机构地区：[1]国网甘肃省电力公司信息通信公司,甘肃兰州730050 [2]北京邮电大学,北京100876

出　　处：《电子技术应用》2014年第6期106-108,共3页Application of Electronic Technique

摘　　要：频谱灵活光网络中,为了降低业务保护路径上所需的资源,提出基于可控调制阶数的业务带宽压缩机制,根据业务的等级对业务进行灵活的柔性保护,提高网络的生存性。仿真结果表明,当路径上的频谱资源不足以恢复受损业务时,采用柔性保护技术在保证一定信号质量的前提下,可以降低业务传输所需的带宽,提高受损业务的恢复率。In order to minimize operational resources needed to protect the path, based on the controllable modulation order, a service bandwidth compression mechanism is proposed, according to the level of the business operations for flexible soft protection to improve network survivability in flexible spectrum optical networks. Simulation results show that when the path spectrum resources are insufficient to restore the damaged business, under the premise of guaranting the business signal quality, the usage of soft protection technology reduce the transmission bandwidth required and improve the recovery rate of damaged businesses.

关 键 词：频谱灵活光网络 频谱资源分配 调制阶数 柔性保护 

分 类 号：TN917.3[电子电信—通信与信息系统]