| 摘要: |
| 为解决灾后通信网络损毁故障恢复问题，基于覆盖网络提出了通信网络恢复新策略，应用覆盖网络与源路由实现了通信网络路径的多样性，系统恢复中选取最佳landmark，为网络流量重新确定传输路径，保证节点传输中可有效绕过灾后故障区域。同时考虑到灾后区域通信故障中极容易出现的信息爆炸情况，加入了拥塞感知恢复系统，构建了一种灾后通信网络恢复急救系统（Postdisaster Communication Network Recovery Emergency System,PES）。该系统可借助较少的网络探测开销及时绕过通信损毁故障区域与信息爆炸拥堵节点位置，提高网络流量的传输效率，在短时间内实现通信网络的恢复重连。 |
| 关键词: 灾后通信故障 覆盖网络 源路由 信息爆炸拥堵 |
| DOI： |
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| 基金项目: |
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| Post-disaster communication network recovery strategy based on overlay network |
| ZHAO Heng,MIAO Kun,BAI Jiwu,LI Song,ZHAO Qian,FAN Zhengzheng |
| (Jiyuan Power Supply Company,State Grid Henan Electric Power Company,Jiyuan 454650,China) |
| Abstract: |
| In order to solve the problem related to the recovery of the damaged communication network after disaster,a new strategy on recovery of communication network is proposed based on overlay network,which is applied to source routing to realize the diversity of communication network paths.The best landmark is chosen in system recovery to reset the transmission path for the network traffic and ensure that fault zones after disaster can be bypassed effectively during the node transmission.Meanwhile,considering regional communication failure after disaster can lead to information explosion likely,a congestion awareness recovery system is added to build a postdisaster communication network recovery emergency system(PES).By the virtue of less expense on network detecting,this system can surmount communications damaged and fault zones and escape information explosion and congestion nodes in time,improving the transmission efficiency of network traffic,and realizing the recovery and reconnection of communication network in a short time. |
| Key words: post disaster communication failure overlay network source routing information explosion and congestion |
