| 摘要: |
| 针对异步睡眠机制增大通信延迟的问题,根据Dual-Radio可并行收发的特点,提出动态调节节点占空比的机制.该机制通过动态地调节节点的占空比,使节点及时唤醒,并且预测链路的冲突状况,减少冲突对数据发送的干扰.模拟实验结果和理论分析表明:提出的解决方案在使用较小能量的同时,有效地减少了通信延迟. |
| 关键词: 无线传感器网络 睡眠调度 睡眠 唤醒 占空比 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金(61070193);黑龙江省科技攻关项目(GC09A109);哈尔滨市科技创新人才研究专项资金优秀学科带头人资助项目(2011RFXXG014) |
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| Sleep-Wake Scheduling Mechanism in Dual-Radio Wireless Sensor Networks |
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YANG Jian, LI Jin-Bao, GUO Long-Jiang, ZHANG De-Sheng
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School of Computer Science and Technology, Heilongjiang University, Harbin 150080, China
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| Abstract: |
| With the aim of resolving the problem that sensors use asynchronous sleep-wake scheduling to increase the communication delay,this paper proposes a regulating duty-cycle mechanism based on the excellence of parallel of Dual-Radio.This mechanism makes the wake-up time of node earlier by regulating the duty-cycle of nodes dynamically,and predicts the conflict on the data transmission to reduce the interference of conflict.Simulation experimental results and theoretical analysis show that solution uses less energy and reduces the communication delay. |
| Key words: wireless sensor network sleep-wake scheduling sleep wake up duty-cycle |
