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.
出处
《计算机工程》
CAS
CSCD
北大核心
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)
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
Heterogeneous Wireless Sensor Network（HWSN）
hexagon
coverage constraint
energy consumption model
maximum lifetime model
