为探究无线设备下传感器动力能源的供应问题,构建出一种基于无线设备需求的传感器能源供应网络。运用集中式算法解决小规模传感器充电的安全调度问题,通过非均匀分簇多节点算法(Nonuniform Clustering Multi Node Algorithm,NCMNA)计算...为探究无线设备下传感器动力能源的供应问题,构建出一种基于无线设备需求的传感器能源供应网络。运用集中式算法解决小规模传感器充电的安全调度问题,通过非均匀分簇多节点算法(Nonuniform Clustering Multi Node Algorithm,NCMNA)计算出无线传感器运动路径与充电运行周期。仿真结果表示,与其他两种网络相比,平均充电次数能够降低至32.3%和58.7%,证明该能源供应网络能够满足无线设备对能源供应的需求。展开更多
The imbalance of energy consumption in wireless sensor networks(WSNs)easily results in the“hot spot”problem that the sensor nodes in a particular area die due to fast energy consumption.In order to solve the“hot s...The imbalance of energy consumption in wireless sensor networks(WSNs)easily results in the“hot spot”problem that the sensor nodes in a particular area die due to fast energy consumption.In order to solve the“hot spot”problem in WSNs,we propose an unequal clustering routing algorithm based on genetic algorithm(UCR-GA).In the cluster head election phase,the fitness function is constructed based on the residual energy,density and distance between nodes and base station,and the appropriate node is selected as the cluster head.In the data transmission phase,the cluster head selects single-hop or multi-hop communication mode according to the distance to the base station.After we comprehensively consider the residual energy of the cluster head and its communication energy consumption with the base station,an appropriate relay node is selected.The designed protocal is simulated under energy homogeneous and energy heterogeneity conditions,and the results show that the proposed routing protocal can effectively balance energy consumption,prolong the life cycle of network,and is appicable to heterogeneous networks.展开更多
文摘为探究无线设备下传感器动力能源的供应问题,构建出一种基于无线设备需求的传感器能源供应网络。运用集中式算法解决小规模传感器充电的安全调度问题,通过非均匀分簇多节点算法(Nonuniform Clustering Multi Node Algorithm,NCMNA)计算出无线传感器运动路径与充电运行周期。仿真结果表示,与其他两种网络相比,平均充电次数能够降低至32.3%和58.7%,证明该能源供应网络能够满足无线设备对能源供应的需求。
基金National Natural Science Foundation of China(No.61862038)Lanzhou Talent Innovation and Entrepreneurship Technology Plan Project(No.2019-RC-14)Foundation of a Hundred Youth Talents Training Program of Lanzhou Jiaotong University。
文摘The imbalance of energy consumption in wireless sensor networks(WSNs)easily results in the“hot spot”problem that the sensor nodes in a particular area die due to fast energy consumption.In order to solve the“hot spot”problem in WSNs,we propose an unequal clustering routing algorithm based on genetic algorithm(UCR-GA).In the cluster head election phase,the fitness function is constructed based on the residual energy,density and distance between nodes and base station,and the appropriate node is selected as the cluster head.In the data transmission phase,the cluster head selects single-hop or multi-hop communication mode according to the distance to the base station.After we comprehensively consider the residual energy of the cluster head and its communication energy consumption with the base station,an appropriate relay node is selected.The designed protocal is simulated under energy homogeneous and energy heterogeneity conditions,and the results show that the proposed routing protocal can effectively balance energy consumption,prolong the life cycle of network,and is appicable to heterogeneous networks.