Research on Information Transfer in Challenged Networks

对挑战网络中的信息传递问题进行了研究。我们在人口稀少的移动广告网络中开发了一种缓冲管理方案，旨在最大化交付率和最小化平均交付延迟。我们还开发了一种寻找中继节点以最小化平均交付延迟的方法，该方法利用仅在每个节点可用的本地信息。提出了具有单副本路由和流行病路由的分层三维水下传感器网络的系统参数优化方法。此外，我们还开发了在渡轮辅助延迟容忍网络中寻找集群的最优访问顺序和对集群进行分组的方法，以最小化平均交付延迟。

Research on information transfer in challenged networks was conducted. We developed a buffer management scheme in sparsely populated mobile ad hocnetworks, aiming to maximize the delivery ratio and to minimize the mean delivery delay.We also developed a method of finding relay nodes so as to minimize the mean deliverydelay, which utilizes local information only available at each node. We also developedsystem parameter optimization methods for layered 3D underwater sensor networks withsingle-copy routing and epidemic routing. Furthermore, we developed methods of findingan optimal visiting order of clusters and grouping clusters in ferry-assisted delay tolerantnetworks in order to minimize the mean delivery delay.