异构传感器网络代价最小模型  

Model of minimum cost heterogeneous sensor network

作　　者：孙瑞华[1] 马春光[1] 张国印[1] 尚治国[1] 

机构地区：[1]哈尔滨工程大学计算机科学与技术学院,哈尔滨150001

出　　处：《计算机应用》2008年第5期1280-1282,1286,共4页journal of Computer Applications

基　　金：黑龙江省博士后科研启动基金(LBH-Z06027);哈尔滨工程大学基础研究基金项目(HEUFT05067)

摘　　要：研究了单位面积方形内异构传感器网络,基站从局部地区收集数据代价最小模型。在满足连通性、覆盖性、突然死亡效应条件下,得到最小代价情形下所需两类节点数量和能量参数。证明了环形区域宽度在小于或等于中心圆半径时,环形内簇头节点单位周期能耗随环形区域宽度增加而增加。同时计算出中心圆内需多散布的节点数量。实验结果表明,参数近似解与精确解相比较,结果吻合得很好。This paper proposed a minimum cost model for the base station to gather data from local area in the heterogeneous sensor network within a square unit, The amount and energy parameters of two node types were acquired under the conditions of coverage and connectivity and sharp cutoff. It was proved that the energy eonsumption per unit period of cluster nodes in the annular region increased as the width of the annular region increased when the width of the annular region was not longer than the radius of the center circle, At the same time, the quantity of additional nodes needed in the center circle was also calculated. In experiments, the parameters of approximate and exact solutions were compared, and they tallied well.

关 键 词：传感网络 网络寿命 连通和覆盖 能量 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]