作　　者： ; ;

机构地区： 华南师范大学南海校区学院信息工程与技术系

出　　处： 《华南师范大学学报（自然科学版）》 2012年第2期53-57,共5页

摘　　要： 传感器的数据在传输过程中按照贪婪算法形成的数据汇聚路径中,有些节点过早地消耗完其能量,造成所谓的"热点问题",引起传感器网络能量消耗的不平衡.本研究提出了一种能量平衡的数据汇聚路由算法——EBGP协议.该协议依据邻居节点的剩余能量、邻居节点到Sink节点的距离以及邻居节点到源节点的距离来计算概率值,然后选择邻居节点中概率最大的一个作为数据转发节点.仿真显示EBGP协议胜过GPSR、GEAR和D-REECR协议,达到了能量平衡和能量效率的目的. Wireless sensor networks are composed of a large number of densely deployed sensors. Sensor nodes of such networks depend on batteries to supply their energe which is limited. Consequently, energy efficiency and en-ergy balance are important in design consideration for these networks. In the route of data aggregation setup accord- ing to greed algorithm, some nodes expend their energy too early causing the imbalance of energy consumption forsensor networks, called ＂hotspot＂ problem, which is investigated in this work and an energy - balancing data ag- gregation routing algorithm - EBGP protocol is proposed. In this protocol, before forwarding data, each neighbor node of a source node first calculates own probability value to become forwarding node according to itself residualenergy and the distance from itself to source node as well as sink node, then each neighbor node sends the probabil-ity value to source node; finally the source node selects the neighbor node possessing of the maximum probabilityvalue as data forwarding node. Simulations show that EBGP protocol performs better than GPSR protocol, GEAR protocol and D -REECR protocol in energy balance and energy efficiency.

关 键 词： 传感器网络 数据汇聚 能量平衡 能量效率 路由算法

领　　域： [自动化与计算机技术] [自动化与计算机技术]