软件定义空基骨干网中的编码感知机会路由方案

为保障空基通信任务的高效实施，针对软件定义空基骨干网中路由信息交互时存在的时延、开销以及可靠性方面的不足，提出一种改进的兼具软件定义与网络编码优势的CAOR-SD方案。该方案在沿用编码感知机会路由基本思想的前提下，将节点距离与编码收益综合考虑构造转发消耗函数进行候选转发节点优先级的分配，从而提高网络传输效率；同时对控制报文的反馈机制和节点的流表结构进行设计，控制开销有效降低。仿真结果表明，该路由方案可较好地适应空基通信场景，能够降低传输时延和路由开销，提高网络吞吐量和数据成功传输率。

Coding aware opportunistic routing scheme for software-defined airborne backbone networks

To safeguard the efficient implementation of airborne communications missions, this paper developed a coding aware opportunistic routing scheme which had advantages of both SDN and network coding, aiming at the insufficient of timeliness, reliability and overhead in the interaction of routing information for the airborne backbone networks. Following the basic idea of coding aware opportunistic routing, this routing scheme structured a forwarding consumption function combining the distance of nodes and the coding gains to assign priorities of candidate nodes, thus it could improve the network transmission efficiency. Besides, this routing scheme designed the feedback mechanism of the control message and the structure of flow table, thus it could reduce the control overhead. The simulation results show that this routing scheme can adapt to airborne communication, in addition, it can reduce the transmission delay and routing overhead while it can greatly improve the network throughput and transmission rate.