Swarm UAVS with FSO systems: a performance analysis using differential chaos shift keying modulation

IF 4 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical and Quantum Electronics Pub Date : 2025-10-17 DOI:10.1007/s11082-025-08492-7

Vijaya Ratnam Nallagonda, Ravi Bhukya, D. Sridhar, N. Siva NagaRaju, Rajesh Gogineni, K Prabu

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引用次数: 0

Abstract

A novel method is presented to analyze the impact of hovering-based inter Unmanned Aerial Vehicle (UAV) based Free Space Optical (FSO) system on the performance and secure communication of serial relaying. This study improves upon previous research by comprehensively considering the effects of orientations, positions, and angle of arrival (AoA) fluctuations for end-to-end bit error rate (BER) analysis in serial relaying for disaster management applications. We examined the end-to-end performance by considering hovering state positions, orientations, AoA fluctuations, path loss, pointing loss, and the effects of turbulence. The influences of atmospheric turbulence, hovering state variations, and pointing errors are mitigated through the implementation of serial-relaying and Differential Chaos Shift Keying (DCSK) Modulation techniques. This approach enhances the overall transmission distance of inter-UAV-based FSO systems by addressing atmospheric turbulence, spreading factor and hovering state fluctuations. We derived an analytical expression for the end-to-end BER in serial relays incorporating DCSK modulation. The analytical results were plotted and compared with simulation results. This study provides insights into the design of inter-UAV-based FSO systems, evaluates serial relay performance under varying turbulence conditions, determines the required number of relays under specific turbulence scenarios, and assesses the achievable transmission distances.

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群无人机与FSO系统：使用差分混沌移位键控调制的性能分析

提出了一种分析悬停式无人机间自由空间光学系统对串行中继性能和安全通信影响的新方法。本研究在以往研究的基础上，综合考虑了方向、位置和到达角（AoA）波动对串行中继端到端误码率（BER）分析的影响，用于灾害管理应用。我们通过考虑悬停状态位置、方向、AoA波动、路径损失、指向损失和湍流的影响来检查端到端性能。通过实现串行中继和差分混沌移位键控（DCSK）调制技术，减轻了大气湍流、悬停状态变化和指向误差的影响。该方法通过解决大气湍流、扩频因子和悬停状态波动等问题，提高了无人机间FSO系统的整体传输距离。我们推导了包含DCSK调制的串行中继端到端误码率的解析表达式。将分析结果与仿真结果进行了对比。本研究为基于无人机的FSO系统的设计提供了见解，评估了不同湍流条件下串行中继的性能，确定了特定湍流情况下所需的中继数量，并评估了可实现的传输距离。

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

Optical and Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.60

自引率

20.00%

发文量

810

审稿时长

3.8 months

期刊介绍： Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.