《计算机应用研究》|Application Research of Computers

CRSN中基于能量收集的MAC协议

MAC protocol in energy harvesting CRSN

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作者 张芮铭,裴二荣
机构 重庆邮电大学 通信与信息工程学院,重庆 400065
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文章编号 1001-3695(2017)08-2510-05
DOI 10.3969/j.issn.1001-3695.2017.08.060
摘要 基于能量收集的CRSN(EH-CRSN)是一种将能量收集模块引入到CRSN中的新型WSN。这种WSN能够让节点通过协调能量收集和能量消耗进行自我调节,极大延长这种WSN生命周期以及提高系统性能。然而现有基于能量收集的MAC协议研究还不成熟,未能将这种潜能挖掘出来。针对EH-CRSN的MAC协议问题,结合能量收集技术,设计了一种能量有效的管理策略,通过调整节点的频谱感知参与度,以及调整节点的工作周期活跃度,使得每一个节点达到能量均衡使用的效果。同时针对弱势节点设计了低功耗的能量管理策略。数值仿真结果证明所提方案使得低成本的能量收集设备满足了传感器长期运行的需求。
关键词 认知无线传感器网络;能量收集;能量管理;频谱感知
基金项目 国家自然科学基金资助项目(61379159)
重庆市研究生研究创新资助项目(CYS14149)
重庆市教委科技研究资助项目(KJ130513)
重庆市基础与前沿资助项目(csts2013jcyjA40020)
本文URL http://www.arocmag.com/article/01-2017-08-060.html
英文标题 MAC protocol in energy harvesting CRSN
作者英文名 Zhang Ruiming, Pei Errong
机构英文名 SchoolofCommunication&InformationEngineering,ChongqingUniversityofPosts&Telecommunications,Chongqing400065,China
英文摘要 Energy harvesting CRSN(EH-CRSN) is a new kind of WSN which introduced energy harvesting module to CRSN. By coordinating energy consumption and energy harvesting technology, sensor nodes adjusted themselves so that they greatly extended the life cycle and improved system performance. But the study of MAC protocol with energy harvesting modules added was still not so mature that this potential could not play out. For EH-CRSN MAC protocol issues, combined with energy harvesting technology, this paper designed an energy efficient strategy by adjusting nodes’ spectrum sensing participating rate, as well as adjusting the nodes’ duty cycle so that nodes achieved the effect of a balanced use of the collected energy. Meanwhile, this paper designed low-power energy management strategies for vulnerable nodes. Simulation results demonstrate that low-cost energy harvesting devices meet the need of nodes’ long-term operation with this scheme.
英文关键词 cognitive wireless sensor networks; energy harvesting; energy management; spectrum sensing
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收稿日期 2016/5/25
修回日期 2016/7/15
页码 2510-2514
中图分类号 TN915.04
文献标志码 A