无线传感器网络中的可靠传输研究

Research on Reliable Transport in Wireless Sensor Network

无线传感器网络是由大量微型传感器节点以自组织和多跳的方式构成的网络。它具有资源非常受限、无线通信链路质量不稳定和网络拓扑动态变化等诸多显著特点,与现有的互联网和其它无线网络存在较大差别,向可靠数据传输提出新的挑战和要求。针对无线传感器网络,本文探讨了设计可靠传输协议应考虑的因素,分析了两种可靠传输的实现机制,提出可靠传输协议的分类方法,并重点介绍近年来提出的典型可靠传输协议,最后指出将来的研究方向。

Wireless sensor network consists of a large number of sensor nodes in Ad hoc and multi-hop manner. Due to its characteristics of constrained resources, poor link quality and dynamic topology, it is largely different from Internet and other wireless networks and poses new challenge for reliable data transport. Aiming at wireless sensor network, this paper presents some essential considerations for reliable transport protocols, analyzes two mechanisms for reliable transport, categorizes these protocols, mainly introduces several recent typical protocols, and finally proposes research directions for future work.