Secrecy analysis of orthogonal/nonorthogonal multiple access in energy scavenging-enabled short-packet transmission

IF 4.3 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

Computer Communications Pub Date : 2025-05-19 DOI:10.1016/j.comcom.2025.108214

Toi Le-Thanh , Khuong Ho-Van , Thiem Do-Dac

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引用次数: 0

Abstract

Energy scavenging (ES)-enabled short-packet transmission (SPT) aims to attain low latency, high energy efficiency, high reliability by combining radio frequency ES with SPT. However, ES-enabled SPT (ESSPT) is susceptible to malicious overhearing attributable to broadcast feature of wireless transmission. To have prompt insights into secrecy capability of nonorthogonal/orthogonal multiple access (NOMA/OMA) in ESSPT, this paper proposes an analytical framework under realistic imperfections, such as arbitrary fading severity, hardware imperfection (HWi), nonlinear ES (nlES), channel state information imperfection (CSIi), and successive interference cancellation imperfection (SICi). Monte-Carlo simulations validate the proposed framework and expose the significant degradation of the secrecy capability of NOMA/OMA in ESSPT due to these imperfections. Moreover, the secrecy capability of NOMA/OMA in ESSPT can be maximized by selecting properly the transmit power and ES duration. Remarkably, in ESSPT, average effective secrecy rate sum and average secrecy throughput sum of OMA are almost double those of NOMA, indicating a significant superiority of OMA over NOMA in terms of security.

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能量清除短包传输中正交/非正交多址的保密性分析

基于能量清除（ES）技术的短包传输（SPT）旨在将射频ES与能量清除技术（SPT）相结合，实现低延迟、高能效、高可靠性。然而，由于无线传输的广播特性，ESSPT （ES-enabled SPT）容易被恶意窃听。为了更好地了解ESSPT中非正交/正交多址（NOMA/OMA）的保密能力，本文提出了一个现实缺陷下的分析框架，这些缺陷包括任意衰落严重程度、硬件缺陷（HWi）、非线性ES （nlES）、信道状态信息缺陷（CSIi）和连续干扰抵消缺陷（SICi）。蒙特卡罗仿真验证了所提出的框架，并揭示了由于这些缺陷导致的NOMA/OMA在ESSPT中的保密能力的显著下降。此外，通过选择合适的发射功率和ES持续时间，可以最大限度地提高ESSPT中NOMA/OMA的保密能力。值得注意的是，在ESSPT中，OMA的平均有效保密率总和和平均保密吞吐量总和几乎是NOMA的两倍，表明OMA在安全性方面明显优于NOMA。

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

Computer Communications 工程技术-电信学

CiteScore

14.10

自引率

5.00%

发文量

397

审稿时长

66 days

期刊介绍： Computer and Communications networks are key infrastructures of the information society with high socio-economic value as they contribute to the correct operations of many critical services (from healthcare to finance and transportation). Internet is the core of today''s computer-communication infrastructures. This has transformed the Internet, from a robust network for data transfer between computers, to a global, content-rich, communication and information system where contents are increasingly generated by the users, and distributed according to human social relations. Next-generation network technologies, architectures and protocols are therefore required to overcome the limitations of the legacy Internet and add new capabilities and services. The future Internet should be ubiquitous, secure, resilient, and closer to human communication paradigms. Computer Communications is a peer-reviewed international journal that publishes high-quality scientific articles (both theory and practice) and survey papers covering all aspects of future computer communication networks (on all layers, except the physical layer), with a special attention to the evolution of the Internet architecture, protocols, services, and applications.