【摘要】 空天信息网络由于受高延时、高误码的影响,吞吐量受限,如何提高网络吞吐量是一个很大的挑战.本文对提高网络吞吐量的网络编码技术和机会路由技术进行分析,重点研究了MORE协议和SlideOR协议中的网络编码机制,指出它们应用于空天中继网络中存在的不足,并将一种基于动态滑动窗口的网络编码方案(DSWNC)应用于空天信息网络中.仿真结果证明,此方案在高延时、高误码环境下具有比MORE协议和SlideOR协议更高的端到端吞吐量.更多还原

【Abstract】 Due to the influence of high delay and high bit error rate, the throughput of aerospace information network is limited, which is a great challenge to improve the throughput in the sky information network. The opportunity routing technique and network coding technique, which can improve network throughput, are studied in this article. Focusing on the network encoding mechanism of MORE protocol and SlideOR protocol, we point out the shortcomings of their application to the sky relay network, and apply a dynamic sliding window-based network coding(DSWNC) scheme to the Space-Sky Information Network. The simulation results show that this scheme has a higher end to end throughput than the MORE protocol and the SlideOR protocol in high delay time and high error code environment.更多还原