航空信息网络服务功能链协同构建与映射策略

针对任务时延敏感、资源承载有限的航空信息网络作战任务高效部署问题, 提出一种基于网络功能虚拟化的服务功能链协同构建和映射策略。该策略以平台和链路负载率为参考, 在确定服务功能所映射平台基础上, 通过服务链构建方案与网络资源状况相协调, 获得最佳服务链构建方案, 分别通过改进蚁群算法和广度优先搜索算法获得映射和构建结果。研究结果表明, 所提策略在时间复杂度较低条件下可有效提高任务请求接受率, 缩短任务平均等待时间, 在满足更多任务需求的同时保证任务的快速响应。

Collaborative construction and embedding strategy of aviation information network service function chain

Aiming at the problem of efficient deployment of combat missions in aviation information network with sensitive mission delay and limited resource carrying capacity, a collaborative construction and embedding strategy of service function chain based on network function virtualization is proposed. This strategy takes the load rate of platform and link as reference, determines the platform mapped by service function, coordinates the service chain construction scheme with the network resource status, and obtains the best service chain construction scheme. The mapping and construction results are obtained by the improved ant colony algorithm and the breadth-first search algorithm respectively. The results show that the proposed strategy can effectively improve the acceptance rate of the task request, shorten the average waiting time of the task, and ensure the quick response of the task while satisfying more task requirements under the condition of low time complexity.