In the wireless sensor networks, high efficient data routing for the limited energy resource networks is an important issue. By introducing Antcolony algorithm, this paper proposes the wireless sensor network routing ...In the wireless sensor networks, high efficient data routing for the limited energy resource networks is an important issue. By introducing Antcolony algorithm, this paper proposes the wireless sensor network routing algorithm based on LEACH. During the construction of sensor network clusters, to avoid the node premature death because of the energy consumption, only the nodes whose residual energy is higher than the average energy can be chosen as the cluster heads. The method of repeated division is used to divide the clusters in sensor networks so that the numbers of the nodes in each cluster are balanced. The basic thought of ant-colony algorithm is adopted to realize the data routing between the cluster heads and sink nodes, and the maintenance of routing. The analysis and simulation showed that the proposed routing protocol not only can reduce the energy consumption, balance the energy consumption between nodes, but also prolong the network lifetime.展开更多
文摘研究在改进无线传感网络LEACH路由算法的基础上,构建出光伏组件远程在线监测方案,使同汇聚节点直接通信的节点数量有效降低。该方案的核心是DS 18B20温度传感器、电压电流采集电路、NRF24L01无线模块和MSP430G2553单片机,科学设计了传感器节点的硬件结构,同时在设计汇聚节点硬件时,借助的核心是NRF24L01无线模块、GPRS无线模块SIM900A和MSP430G2553单片机。软件开发平台是Visual Studio 2010,运用了SQL Server2008数据库技术,编程语言是C/C#,有效设计了系统监测管理上位机。软件系统测试结果显示出:特定通信距离范围中的监测系统能够稳定、正常地进行数据通信,具有良好的可靠性和实时性,确保了无线传感器网络监测对能源的需求。
基金Acknowledgements Supported by the Fundamental Research Funds for the Central Universities（72104988）, The National High Technology Research and Development Program of China （ 2009AA01 Z204, 2007AA01Z429, 2007AA01Z405）, The post doctor science foundation of China （20090451495, 20090461415） The National Natural science foundation of China （60874085, 60633020, 60803151 ）, The Natural Science Basic Research Plan in Shaanxi Province of China （Program No. SJ08F13）, The Aviation Sci- ence Foundation of China （2007ZD31003, 2008ZD31001 ）
文摘In the wireless sensor networks, high efficient data routing for the limited energy resource networks is an important issue. By introducing Antcolony algorithm, this paper proposes the wireless sensor network routing algorithm based on LEACH. During the construction of sensor network clusters, to avoid the node premature death because of the energy consumption, only the nodes whose residual energy is higher than the average energy can be chosen as the cluster heads. The method of repeated division is used to divide the clusters in sensor networks so that the numbers of the nodes in each cluster are balanced. The basic thought of ant-colony algorithm is adopted to realize the data routing between the cluster heads and sink nodes, and the maintenance of routing. The analysis and simulation showed that the proposed routing protocol not only can reduce the energy consumption, balance the energy consumption between nodes, but also prolong the network lifetime.
