一种无线传感器网络中的节能路由方案

Chiu-Kuo Liang, Yu-Jie Huang, J. Lin
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引用次数: 12

摘要

在无线传感器网络中,定期从感兴趣的区域收集数据对于时间敏感的应用是一项重要的任务。必须收集感测数据并将其传输到基站进行进一步处理,以满足最终用户的查询。由于网络由低成本节点和有限的电池电量组成,因此设计一种有效的路由方案是一项具有挑战性的任务,该方案可以最小化延迟,并提供良好的能效性能和较长的网络寿命。本文提出了一种基于聚类的最小生成树(CMST-DC)的两层分层路由协议来有效地收集信息。CMST-DC在确保最大限度地利用网络能量的方式上是高效的,它使网络的生命周期更长,并且完成一轮所需的时间更短。仿真结果表明,CMST-DC的性能优于其他分层路由协议,如低能量自适应聚类分层(LEACH)和基于组的传感器网络(GSEN)。此外,CMST-DC是完全自配置的,对于网络拓扑的任何变化都具有鲁棒性。
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An Energy Efficient Routing Scheme in Wireless Sensor Networks
In wireless sensor networks, it is an important task to periodically collect data from an area of interest for time-sensitive applications. The sensed data must be gathered and transmitted to a base station for further processing to meet the end-user queries. Since the network consists of low-cost nodes with limited battery power, it is a challenging task to design an efficient routing scheme that can minimize delay and offer good performance in energy efficiency, and long network lifetimes. In this paper, we propose a two layer hierarchical routing protocol, called cluster-based minimal spanning tree with degree-constrained (CMST-DC), to collect information efficiently. CMST-DC is efficient in the ways that it ensures maximal utilization of network energy, it makes the lifetime of the network longer, as well as it takes much lower time to complete a round. Simulation results show that CMST-DC performs better than other hierarchical routing protocols, such as low-energy adaptive clustering hierarchy (LEACH) and group-based sensor network (GSEN). In addition, CMST-DC is completely self-configurable and robust for any changes in network topology.
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