六边形覆盖条件下的HWSN最大寿命模型  

Maximum Lifetime Model of Heterogeneous WSN in Hexagon Coverage Condition

作　　者：李雪[1] 贺昱曜[1,2] 武奇生[1] 

机构地区：[1]长安大学电子与控制工程学院,西安710064 [2]西北工业大学航海学院,西安710072

出　　处：《计算机工程》2011年第18期12-15,共4页Computer Engineering

基　　金：国家自然科学基金资助项目(60871080);交通运输部基础研究基金资助项目(2010319812080)

摘　　要：提出一种在六边形覆盖约束条件下异构无线传感器网络的"突然死亡"能量消耗模型,该模型可以保证能量均衡消耗和网络寿命最大化。在该能耗模型基础上给出一种考虑节点能耗约束和数据完整性等因素的网络寿命模型,并求得网络寿命模型的最优解。仿真结果表明,构建在六边形覆盖条件下的异构监测传感器模型可以均衡网络能耗,且使网络寿命最大化。The heterogeneous surveillance sensor network energy consumption model which can balance the energy consumption and maximize the network lifetime is established.Based on the model and considering the factors of node energy restriction and data integrality,the network lifetime model of heterogeneous surveillance sensor network in hexagon coverage condition is presented.The optimal solution of the network lifetime model is obtained in hexagon coverage condition when the intra-cluster and inter-cluster key nodes almost run out of energy at the same time.Based on the network lifetime model,the minimum node density for satisfying a given lifetime constraint is gotten.

关 键 词：异构无线传感器网络 六边形 覆盖约束 能量消耗模型 最大寿命模型 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]