计算机科学 ›› 2018, Vol. 45 ›› Issue (6): 100-104.doi: 10.11896/j.issn.1002-137X.2018.06.017
池凯凯, 林一民, 李燕君, 程珍
CHI Kai-kai, LIN Yi-min, LI Yan-jun, CHENG Zhen
摘要: 对于以超级电容为储能设备且工作在占空比模式下的能量捕获传感网,其节点的平均能量捕获速率和吞吐量均很大程度上取决于节点开始休眠时的电容电压和醒来工作时的电容电压。首先,通过理论分析证明传感器节点的能量捕获速率很大程度上取决于电容的即时电压值;然后,对节点的最大吞吐量问题进行建模;最后,提出一种最优化方案来确定开始休眠时的电容电压和醒来工作时的电容电压的最佳取值,从而最大化节点的吞吐量。实验表明,所提方案的吞吐量比已有占空比方案的吞吐量有明显的提高。
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[1]KANSAL A,HSU J,ZAHEDI S,et al.Power management in energy harvesting sensor networks[J].ACM Transactions on Embedded Computing Systems,2006,6(4):1-38. [2]BANDYOPADHYAY S,CHANDRAKASAN A.Platform architecture for solar,thermal and vibration energy combining with MPPT and single inductor[J].IEEE Journal of Solid-State Circuits,2012,47(9):2199-2215. [3]ULUKUS S,YENER A,ERKIP E,et al.Energy harvesting wireless communications:A review of recent advances[J].IEEE Journal on Selected Areas in Communications,2015,33(3):360-381. [4]BI S,ZENG Y,ZHANG R.Wireless powered communication networks:An overview[J].IEEE Wireless Communications,2016,23(2):10-18. [5]DONG Y,WANG J,SHIM B,et al.DEARER:A Distance-and-Energy-Aware Routing With Energy Reservation for Energy Harvesting Wireless Sensor Networks[J].IEEE Journal on Selected Areas in Communications,2016,34(12):3798-3813. [6]KOSUNALP S.MAC protocols for energy harvesting wireless sensor networks:Survey[J].ETRI Journal,2015,37(4):804-812. [7]SAMPLE A,YEAGER D,POWLEDGE P,et al.Design of an RFID-based battery-free programmable sensing platform[J].IEEE Transactions on Instrumentation and Measurement,2008,57(11):2608-2615. [8]FU L,CHENG P,GU Y,et al.Minimizing charging delay in wireless rechargeable sensor networks[C]//IEEE Conference on Computer Communications (INFOCOM).Turin:IEEE Press,2013:2922-2930. [9]ZHANG P,GANESAN D.Enabling bit-by-bit backscatter communication in severe energy harvesting environments[C]//Proceedings of NSDI’14.Seattle:USENIX,2014. [10]RAGHUNATHAN V,SCHURGERS C,PARK S,et al.Energy-aware wireless microsensor networks[J].IEEE Signal Processing Magazine,2002,19(2):40-50. |
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