论文标题
具有非线性能量收集模型的可重构智能表面辅助FM-DCSK-SWIPT方案的设计
Design of a Reconfigurable Intelligent Surface-Assisted FM-DCSK-SWIPT Scheme with Non-linear Energy Harvesting Model
论文作者
论文摘要
在本文中，我们提出了一个可重构的智能表面（RIS）辅助频率调制（FM）差异混乱偏移键（DCSK）方案，并具有同时无线信息和功率传输（SWIPT），称为RIS-FM-DCSK-SWIPT方案，用于低功耗，低调和高级无线沟通网络。特别是，提出的方案是在非线性能量收获（EH）模型下开发的，该模型可以准确地表征实际情况。提出的RIS-FM-DCSK-SWIPT方案具有吸引人的功能，它不需要通道状态信息，从而避免了复杂的通道估计。我们进一步得出了在多路径雷利褪色通道上提出的方案的能量短缺概率和位错误率（BER）的封闭形式的理论表达式。此外，我们研究了关键参数对在两种不同方案中提出的传输方案性能的影响，即RIS辅助访问点（RIS-AP）和双跳通信（RIS-DH）。最后，我们进行了各种蒙特卡罗实验，以验证理论推导的准确性，说明了提出的方案的性能优势，并为将来的研究提供了一些设计见解。
In this paper, we propose a reconfigurable intelligent surface (RIS)-assisted frequency-modulated (FM) differential chaos shift keying (DCSK) scheme with simultaneous wireless information and power transfer (SWIPT), called RIS-FM-DCSK-SWIPT scheme, for low-power, low-cost, and high-reliability wireless communication networks. In particular, the proposed scheme is developed under a non-linear energy-harvesting (EH) model which can accurately characterize the practical situation. The proposed RIS-FM-DCSK-SWIPT scheme has an appealing feature that it does not require channel state information, thus avoiding the complex channel estimation. We further derive the closed-form theoretical expressions for the energy shortage probability and bit error rate (BER) of the proposed scheme over the multipath Rayleigh fading channel. In addition, we investigate the influence of key parameters on the performance of the proposed transmission scheme in two different scenarios, i.e., RIS-assisted access point (RIS-AP) and dual-hop communication (RIS-DH). Finally, we carry out various Monte-Carlo experiments to verify the accuracy of the theoretical derivation, illustrate the performance advantage of the proposed scheme, and give some design insights for future study.
