无线传感器网络中能量有效的加权分簇路由协议研究

【作者】 朱光辉；

【导师】 张修如；

【作者基本信息】 中南大学 ， 计算机应用技术， 2008， 硕士

【摘要】 随着微处理器、无线通信技术和微机电系统的发展,产生了无线传感器网络这一新的信息获取和处理模式。多个传感器节点通过无线通信、自组织方式构成网络,协同工作实时感知、获取和处理信息。无线传感器网络是计算机科学技术的一个新的研究领域,具有十分广阔的应用前景,引起了学术界和工业界的高度重视。由于传感器网络节点数量庞大、单个节点资源极其有限,因此路由协议设计的目标是有效节约能源,延长网络生命周期。通过分析和比较国外提出的几种无线传感器网络的路由协议,并借鉴其中的优秀思想,综合考虑节点的度和能量的情况下,设计了一种能量有效的加权分簇算法对网络进行分簇。然后在分簇的基础上,引入簇标识和簇级别的概念,采用建立簇的级别以优化路由发现方式和簇内单跳与簇间多跳改进数据传输方式的策略,设计了能量有效的加权分簇路由协议,最后对分簇算法和路由协议进行了仿真测试。经OMNET++平台上的仿真测试,证明该路由协议在延长网络寿命,均衡网络各节点能量消耗等方面有较好的性能,是一种适合大规模连续性数据流无线传感器网络的路由协议,基本达到了路由协议设计目标。更多还原

【Abstract】 Recent advances in microprocessor, wireless communication technology and micro-electro-mechanism system, have enabled the development of wireless sensor networks(WSN) Wireless sensor network is a novel technology about acquiring and processing information. In wireless sensor networks, lots of sensor nodes work cooperatively to gather and process information from sensor fields, with wireless communication and self-organization. WSN is a new research area of computer science and technology and has a wide application future. Both academia and industries are very interested in it.The numbers of sensor nodes in WSN are numerous and single node is extraordinarily limited in resource. The all-important aim of designing routing protocol of WSN is to reduce the overall energy dissipated in the network, to prolong the network lifetime. After analyzing and comparing some routing protocols that proposed by oversea researchers, the excellent ideas among them are assimilated and an energy-efficient weight clustering algorithm is designed in the dissertation. On the basis of clustering, the cluster ID and level are introduced into the thesis, and the strategy of building the cluster level to optimize routing found is used, as well as using one-hop in each cluster and multi-hops between clusters to improve the data transmission, then an energy-efficient weight clustering routing protocol is designed, and finally, some simulation tests on the clustering algorithms and routing protocols are conducted.Through simulation tests on the OMNET++ platform are made, the energy-efficient weight clustering routing protocol is testified that has good performance on prolonging the network lifetime, and can balance the energy of the network nodes. The routing protocol achieved its design goal that is suited for wireless sensor network in the form of continuous data stream and huge scale.更多还原