A Novel Non-Uniform Node Distribution Strategy for Wireless Sensor Networks
In wireless sensor networks, sensor nodes need to send sensing data to the sink node. Due to the limitation on the communication distance, some sensor nodes far from the sink node cannot send their data directly the sink node and need other nodes to relay their data to the sink node. The nodes near the sink node have to spend much energy to relay the data sent by the far nodes, and are, therefore, dying faster. When the near nodes all die, no data can be sent to the sink and the sensor network stops working, which is called the enery hole. We propose a novel non-uniform strategy to distribute the sensor nodes, which appropriately arranges the node density based on the distance to the sink node and can ef.ciently avoid the energy hole. This strategy is simulated on an NS2 platform. Simulation results con.rms the proposed strategy can signi.cantly extend the life of the sensor network, substantially increase the total transmitted data amount and avoid the energy hole.
Wireless sensor networks Energy hole Nonuniform distribution Energy balance
Junjie Yuan Qiang Ling Jinfeng Yan Weihua Zhang Huihui Gu
Dept.of Automation,University of Science and Technology of China
国际会议
2011 China Control and Decision Conference(2011中国控制与决策会议 CCDC)
四川绵阳
英文
3745-3749
2011-05-23（万方平台首次上网日期，不代表论文的发表时间）