适应观测场景变化的传感器网络休眠调度算法  

Sleep/Wakeup Scheduling Algorithm for Sensor Networks Adaptable to Monitoring Scenario Changes

作　　者：李为为[1] 陈宏滨[1] 赵峰[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《西南大学学报（自然科学版）》2013年第2期141-147,共7页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金项目(61162008;61172055);广西自然科学基金项目(2011GXNSFB018072);广西教育厅科研项目(201012MS080)

摘　　要：针对传感器网络用于数字航道观测时从区域观测到目标跟踪转变的情形,提出一种适应观测场景变化的休眠调度算法.与已有的只考虑区域观测的休眠调度算法不同的是,提出的算法能够让节点感知目标的出现并且自适应地转换状态.仿真结果表明,适应场景变化的休眠调度算法能够在观测场景发生变化时,让更多的冗余节点休眠,从而延长了网络生命周期.For the case where a sensor network is applied in digital waterway surveillance and the scenario changes from area monitoring to target tracking, a sleep/wakeup scheduling algorithm that adapts to the change is proposed. Different from the existing sleep/wakeup scheduling algorithms, which only consider area monitoring, the proposed algorithm allows the sensor nodes to sense the appearance of targets and change working status adaptively. Simulation results show that the sleep/wakeup scheduling algorithm that adapts to the change can put more redundant nodes to the sleep state when the monitoring scenario changes, thus extending the network lifetime.

关 键 词：传感器网络 自适应休眠调度 生命周期 数字航道 

分 类 号：TN915[电子电信—通信与信息系统]