【摘要】：無線射頻能量傳輸技術(shù)在為下一代無線傳感器網(wǎng)絡(luò)供能方面具有廣闊的應(yīng)用前景。射頻能量捕獲無線傳感網(wǎng)由于能量捕獲速率非常有限,通常工作在極低的占空比模式下。因此這類無線傳感器網(wǎng)絡(luò)的一個基本問題就是如何配置給定數(shù)量的射頻能量源(Energy Transmitters,ETs),從而最大化最糟糕(即具有最低能量捕獲速率)節(jié)點的能量捕獲速率,即最大化其占空比。首先對能量源最優(yōu)化布置問題建模,為深入了解該問題提供理論基礎(chǔ);然后分別提出了貪婪式ETs布置方法和基于粒子群優(yōu)化(Particle Swarm Optimization,PSO)的ETs布置方法。仿真結(jié)果顯示,相較于均勻布置方法,所提出的兩種能量源布置方法能夠極大地提高全網(wǎng)最低占空比。
[Abstract]:Radio frequency energy transmission technology has a broad application prospect in energy supply for the next generation wireless sensor networks. Radio frequency energy acquisition wireless sensing networks usually work in very low duty cycle mode because of the limited energy acquisition rate. Therefore, one of the basic problems of this kind of wireless sensor networks is how to configure a given number of radio frequency energy sources (Energy Transmitters,ETs) to maximize the energy capture rate of the worst (that is, with the lowest energy capture rate) nodes, that is, to maximize their duty cycle. Firstly, the optimal arrangement problem of energy source is modeled, which provides a theoretical basis for further understanding of the problem, and then the greedy ETs layout method and the ETs layout method based on particle swarm optimization (Particle Swarm Optimization,PSO) are proposed respectively. The simulation results show that compared with the uniform arrangement method, the proposed two energy source arrangement methods can greatly improve the minimum duty cycle of the whole network.
【作者單位】： 浙江工業(yè)大學(xué)計算機(jī)科學(xué)與技術(shù)學(xué)院;浙江省可視媒體智能處理技術(shù)研究重點實驗室;
【基金】：國家自然科學(xué)基金(61472367,61432015) 浙江省自然科學(xué)基金(LY15F020029,LY15F020027)資助
【分類號】：TP212.9;TN929.5

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