标题： 多功能RIS辅助系统的混沌非相干SWIPT 显示英文标题

标题： Chaotic Noncoherent SWIPT in Multi-Functional RIS-Aided Systems

摘要： 本文研究了基于混沌信号的发射波形设计，应用于多功能可重构智能表面（MF-RIS）辅助的同时无线信息与能源传输系统。 我们提出了一种基于微分混沌移键控的MF-RIS辅助方案，其中MF-RIS被划分为三个非重叠的表面。 第一子表面的元素执行能量收集（EH），这些收集的能量反过来为负责传输和反射入射信号的另外两个子表面提供所需的功率。 通过考虑频率选择性场景和实际的能量收集模型，我们从能量收集性能和相关的比特误码率方面表征了混沌辅助的MF-RIS系统。 随后，我们表征了收集的能量与比特误码率之间的权衡，并推导出在能量收集模式下所需元素数量的下限。 据此，我们提出了新颖的发射波形设计方案，以展示在实现自持能力背景下适当系统参数选择的重要性。 显示英文摘要

摘要： In this letter, we investigate the design of chaotic signal-based transmit waveforms in a multi-functional reconfigurable intelligent surface (MF-RIS)-aided set-up for simultaneous wireless information and power transfer. We propose a differential chaos shift keying-based MF-RIS-aided set-up, where the MF-RIS is partitioned into three non-overlapping surfaces. The elements of the first sub-surface perform energy harvesting (EH), which in turn, provide the required power to the other two sub-surfaces responsible for transmission and reflection of the incident signal. By considering a frequency selective scenario and a realistic EH model, we characterize the chaotic MF-RIS-aided system in terms of its EH performance and the associated bit error rate. Thereafter, we characterize the harvested energy-bit error rate trade-off and derive a lower bound on the number of elements required to operate in the EH mode. Accordingly, we propose novel transmit waveform designs to demonstrate the importance of the choice of appropriate system parameters in the context of achieving self-sustainability.