【摘要】 分析了无线传感器网络工作过程中的能量消耗问题,提出了一种低功耗网络协议。通过采用通信只在相邻节点间逐跳进行、用本地路由来缩短各节点到簇首领的传输路径、在中间节点进行数据融合以减少传输数据量以及簇内所有节点轮流充当首领传送采集数据给基站以平衡能量消耗等方法来降低节点工作时的能量消耗。实验结果显示,协议可有效延长节点和网络的工作寿命。更多还原

【Abstract】 A challenge in collecting sensed information is that nodes only have limited battery power.So collecting data in an energy efficient manner is critical to operate the sensor network for a long period of time.This paper analyzes the energy consumption of sensor networks and proposes an energy preserving protocol that reduces the amount of energy spent per cycle.In the protocol,each node communicates only with a close neighbor,delivers messages along a shorter-path and takes turns becoming a cluster head to transmit to the base station,thus prolonging nodes’ lifetimes. Simulation results show that it can achieve significant energy savings.更多还原