本文選題：異構(gòu)無(wú)線傳感器網(wǎng)絡(luò)　切入點(diǎn)：射頻能量捕獲　出處：《計(jì)算機(jī)科學(xué)》2017年01期 　論文類型：期刊論文

【摘要】：電池供電的無(wú)線傳感器網(wǎng)絡(luò)的應(yīng)用由于電池更換的不便利甚至不可能而受到極大的限制�？紤]具有射頻能量捕獲能力的異構(gòu)無(wú)線傳感器網(wǎng)絡(luò),網(wǎng)絡(luò)節(jié)點(diǎn)的能量捕獲輸出功率需求不一樣。在已知傳感節(jié)點(diǎn)數(shù)目和位置的情況下,研究如何布置射頻能量源(Energy Transmitters,ETs)從而滿足所有節(jié)點(diǎn)的能量捕獲輸出功率需求并且最小化ETs數(shù)目。首先建模出該最少化ETs的布置問(wèn)題,為深入了解該問(wèn)題提供了理論基礎(chǔ);然后提出了一種復(fù)雜度較低的貪婪式ETs布置方法和一種復(fù)雜度略高些的基于粒子群優(yōu)化的ETs布置方法。仿真結(jié)果表明,與貪婪式方法相比,基于粒子群優(yōu)化的方法能找到ETs略微更少的布置方案,但其由于復(fù)雜度略高,因此可用于節(jié)點(diǎn)數(shù)目不是很多的場(chǎng)景,而貪婪式方法則可用于節(jié)點(diǎn)數(shù)目較多的場(chǎng)景。
[Abstract]:The application of battery-powered wireless sensor networks is greatly limited by the inconvenient or even impossible replacement of batteries. The energy capture output power requirements of network nodes are different. When the number and location of sensor nodes are known, In order to satisfy the energy capture output power requirement of all nodes and minimize the number of ETs, this paper studies how to arrange the RF energy source, Energy Transmitters (ETS). Firstly, the layout problem of the minimized ETs is established, which provides a theoretical basis for further understanding the problem. Then, a greedy ETs layout method with lower complexity and a slightly more complex ETs layout method based on particle swarm optimization are proposed. The simulation results show that the proposed method is more efficient than the greedy one. Particle Swarm Optimization (PSO) can find a slightly less ETs layout scheme, but because of its high complexity, it can be used in scenarios where the number of nodes is not large, while greedy method can be used in scenarios with a large number of nodes.
【作者單位】： 浙江工業(yè)大學(xué)計(jì)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(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)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(hào)】：TN929.5;TP212.9

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