Optimal Pulse Energy Modulation for SWIPT Systems With Integrated Receivers

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-03-13 DOI:10.1109/LCOMM.2025.3551118

Angelos Gkekas;Victoria E. Galanopoulou;Odysseas G. Karagiannidis;Sotiris A. Tegos;Panagiotis D. Diamantoulakis

引用次数: 0

Abstract

This work focuses on optimizing the constellation design for simultaneous wireless information and power transfer (SWIPT) systems with integrated receivers that affect the modulation scheme and require non-coherent symbols. Specifically, we propose, analyze and compare the optimal pulse energy modulation (PEM) with the uniform PEM. The work focuses on the trade-off between symbol error probability (SEP) and peak-to-average power ratio (PAPR), minimizing SEP while constraining PAPR. An analytical solution to the optimization problem is derived using Lagrange dual decomposition, which provides an efficient framework for the optimal constellation structure. The SEP performance of the optimal PEM in additive white Gaussian noise channels is demonstrated and validated through numerical simulations. The results show that the proposed PEM achieves reliable information transmission and superior energy harvesting efficiency compared to the uniform design.

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集成接收机SWIPT系统的最佳脉冲能量调制

本研究的重点是优化具有集成接收器的同步无线信息和功率传输（SWIPT）系统的星座设计，该系统会影响调制方案并需要非相干符号。具体来说，我们提出、分析并比较了最优脉冲能量调制（PEM）和均匀脉冲能量调制（PEM）。研究重点是在符号错误概率（SEP）和峰均功率比（PAPR）之间进行权衡，在限制PAPR的同时最小化SEP。利用拉格朗日对偶分解导出了优化问题的解析解，为优化星座结构提供了一个有效的框架。通过数值仿真验证了最优PEM在加性高斯白噪声信道中的SEP性能。结果表明，与均匀设计相比，所设计的PEM实现了可靠的信息传输和更高的能量收集效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.