摘要： 讨论在无线传感器网络中节点的感知半径可调的情况下，如何合理设计节点的拓扑结构，实现网络的能量负载均衡、延长网络的生存周期。在保证覆盖和连通的前提下，分析当感知半径可调时节点的分布特征和拓扑结构，并对现有的冗余节点移除算法进行改进，提出一种自适应调节感知半径冗余节点睡眠算法(AASRS)。实验结果表明，该算法可以提高网络的能量负载均衡水平，并能最大化节点的感知覆盖区域，且使用的活动节点较少。
关键词:
无线传感器网络,
可调,
感知半径,
睡眠算法
Abstract: This paper mainly discusses how to reasonable devise the topology of the nodes when the sensing ranges of the sensor nodes in Wireless Sensor Network(WSN) are adjustable. It can implement energy load balancing of the network and prolong the lifecycle of the network. To ensure coverage and connectivity, this paper tries to analyze nodes’ distribution characteristic and topology structure if sensing ranges are adjustable. According to the removing redundant node algorithm, it proposes an algorithm named adaptable adjust sensing radius redundant nodes sleeping algorithm. The result proves that it can apparently improve networks’ energy load balancing level, also maximize nodes’ sensing coverage region and use minimum active nodes.
Key words:
Wireless Sensor Network(WSN),
adjustable,
sensing radius,
sleeping algorithm
中图分类号:
范雄男, 陈庆奎. WSN中基于可调感知半径的节点睡眠算法[J]. 计算机工程, 2010, 36(19): 123-125.
FAN Xiong-Nan, CHEN Qiang-Kui. Node-sleeping Algorithm Based on Adjustable Sensing Radius in Wireless Sensor Network[J]. Computer Engineering, 2010, 36(19): 123-125.