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中文摘要：
无线传感器网络是集信息采集、信息传输、信息处理于一体的综合智能信息系统，具有广阔的应用前景，是信息网络技术中的一个新领域。节点资源极端受限、大规模网络的随机散布以及网络拓扑的动态性都给路由选择与优化问题的研究带来了前所未有的挑战。重点介绍了无线传感器网络路由问题面临的挑战，分析了路由问题的多种制约因素，并提出了动态网络拓扑模型建立的必要性和路由问题的发展方向。
英文摘要：
Wireless sensor networks are a kind of integrated intelligent information system consisting of small nodes with information collection, information transformation, and information processing. It can be used in many fields, and is a new domain of information networks. Limitation of the power energy, dissemination of extensive sensor nodes, and dynamics of the topology of wireless sensor networks have brought out enormous challenges to routing in wireless sensor networks. In the paper, firstly some challenges of routing in wireless sensor networks were presented, and then various restrict factors were analyzed. Finally, some development trends were pointed out, and the dynamic topology model may be a proper selection to solve the routing problem in wireless sensor networks.
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