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Routing algorithm design of satellite network architecture based on SDN and ICN
International Journal of Satellite Communications and Networking ( IF 0.9 ) Pub Date : 2019-03-28 , DOI: 10.1002/sat.1304
Zhiguo Liu 1 , Jie Zhu 1 , Jiangmei Zhang 1 , Qingli Liu 1
Affiliation  

In view of the problems of low routing efficiency, complex control process, and difficult network management in big data environment in the traditional integrated space‐terrestrial network, in the paper, we propose a satellite network architecture called software‐defined information centric satellite networking (SDICSN) based on software‐defined networking (SDN) and information‐centric networking (ICN), and we design a virtual node matrix routing algorithm (VNMR) under the SDICSN architecture. The SDICSN architecture realizes the flexibility of network management and business deployment through the features of the separation of forwarding and controlling by the SDN architecture and improves the response speed of requests in the network by the centric of “content” as the ICN idea. According to the periodicity and predictability of the satellite network, the VNMR algorithm obtains the routing matrix through the relative orientation of the source and destination nodes, thus reducing the spatial complexity of the input matrix of the Dijkstra algorithm and then reducing the time complexity of the routing algorithm. For forwarding information base (FIB), the mechanism of combination of event driven and polling can be quickly updated in real time. Finally, the advantages of the SDICSN architecture in routing efficiency, request delay, and request aggregation are verified by simulation.

中文翻译:

基于SDN和ICN的卫星网络架构路由算法设计

针对传统的空地综合网络中路由效率低,控制过程复杂,大数据环境下网络管理困难的问题,本文提出了一种卫星网络架构,称为软件定义的以信息为中心的卫星联网( SDICSN)基于软件定义网络(SDN)和以信息为中心的网络(ICN),并且我们在SDICSN架构下设计了虚拟节点矩阵路由算法(VNMR)。SDICSN体系结构通过SDN体系结构将转发和控制分离的功能,实现了网络管理和业务部署的灵活性,并以ICN理念为中心,提高了网络中请求的响应速度。根据卫星网络的周期性和可预测性,VNMR算法通过源节点和目标节点的相对方向获得路由矩阵,从而降低了Dijkstra算法输入矩阵的空间复杂度,进而降低了Dijkstra算法输入矩阵的时间复杂度。路由算法。对于转发信息库(FIB),事件驱动和轮询相结合的机制可以实时快速更新。最后,通过仿真验证了SDICSN体系结构在路由效率,请求延迟和请求聚合方面的优势。这样就降低了Dijkstra算法输入矩阵的空间复杂度,进而降低了路由算法的时间复杂度。对于转发信息库(FIB),事件驱动和轮询相结合的机制可以实时快速更新。最后,通过仿真验证了SDICSN体系结构在路由效率,请求延迟和请求聚合方面的优势。这样就降低了Dijkstra算法输入矩阵的空间复杂度,进而降低了路由算法的时间复杂度。对于转发信息库(FIB),事件驱动和轮询相结合的机制可以实时快速更新。最后,通过仿真验证了SDICSN体系结构在路由效率,请求延迟和请求聚合方面的优势。
更新日期:2019-03-28
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