论文标题
基于频率选择性渠道的基于差异的混乱转移键转移
Differential Chaos Shift Keying-based Wireless Power Transfer over a Frequency Selective Channel
论文作者
论文摘要
本文在频率选择性方案中研究了基于差异混乱迁移键合（DCSK）的无线电源传递（WPT）设置的性能。特别是，通过考虑到能量收集过程（EH）过程的非线性和广义频率选择性nakagami-M褪色通道，我们根据发射的波形和通道参数得出了收获能量的封闭形式的分析表达式。对于一种场景，还获得了收获能量的简化闭合表达，与发射符号持续时间相比，延迟扩散可以忽略不计。提供了非平凡的设计见解，其中显示了通道的功率延迟曲线以及传输波形的参数如何影响EH性能。我们的结果表明，与扁平褪色的情况相比，频率选择性通道对WPT的有益于WPT。但是，显着的延迟扩散会对能量传输产生负面影响。
This paper studies the performance of a differential chaos shift keying (DCSK)-based wireless power transfer (WPT) setup in a frequency selective scenario. Particularly, by taking into account the nonlinearities of the energy harvesting (EH) process and a generalized frequency selective Nakagami-m fading channel, we derive closed-form analytical expressions for the harvested energy in terms of the transmitted waveform and channel parameters. A simplified closed-form expression for the harvested energy is also obtained for a scenario, where the delay spread is negligible in comparison to the transmit symbol duration. Nontrivial design insights are provided, where it is shown how the power delay profile of the channel as well as the parameters of the transmitted waveform affect the EH performance. Our results show that a frequency selective channel is comparatively more beneficial for WPT compared to a flat fading scenario. However, a significant delay spread negatively impacts the energy transfer.
