摘要
容延容断网络(delay/disruption tolerant network,简称DTN)是一种新型网络体系结构。在这一类网络中,节点与节点之间不存在端到端的路径,因此节点之间的通信一般使用"存储-携带-转发"的模式来进行,也就是节点需要先将信息存储起来再携带信息,直到遇到能够将消息转发到目的节点的时候才将消息转发出去。因此在容延容断网络中路由算法的关键性问题是如何以较高的发送成功率和较低的延迟将消息转发到目的节点。DTN网络的应用场景通常由手机、蓝牙设备以及具备Wi Fi功能的手持电子设备等组成的移动自组网络。本文主要研究DTN路由算法及其存在的问题。
DTN is a new network architecture Because there is not a end-to-end path between nodes in such networks, it uses the way of ＂storage-carry-forward＂ to communicated between nodes. The nodes need to store and carry the message until the encounter can deliver the message out to the destination node So the key problem is how to send messages successfully and reduce the delay in the unconnected network Such as mobile phone Bluetooth devices, Wi-Fi handheld electronic devices, listening to music such as MP3, MP4, formed a self-contained network It is an application environment of DTN This paper mainly studies the routing algorithm and its existing problems in DTN networks.
出处
《电子测试》
2017年第12期58-60,共3页
Electronic Test
