Multi-Hop UAV-Based FSO System Over Doubly Inverted Gamma-Gamma Turbulence Channel

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2024-08-26 DOI:10.1109/LCOMM.2024.3450177

Prashant Sharma;Swaminathan R.;Deepshikha Singh

引用次数: 0

Abstract

In this letter, we consider a recently introduced doubly inverted Gamma-Gamma (IGGG) turbulence channel model and analyze the performance of a multi-hop unmanned-aerial-vehicle (UAV)-based free space optics (FSO) communication system assuming a decode-and-forward (DF) relaying strategy. UAV-based FSO communication improves wireless connectivity, allowing flexible deployment to establish a line-of-sight (LoS) communication with ground-based nodes. The channel modeling incorporates atmospheric turbulence, non-zero boresight pointing errors, path loss, and angle of arrival (AoA) fluctuations. The closed-form expressions for the outage probability (OP), average bit error rate (ABER), and ergodic capacity (EC) are derived over the IGGG turbulence channel with non-zero boresight pointing errors. In addition, the diversity gain and outage/BER floor are calculated from the asymptotic analyses. To validate all the analytical expressions, Monte-Carlo simulations are conducted utilizing the IGGG turbulence channel model.

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基于无人机的双反伽马-伽马湍流信道多跳 FSO 系统

在这封信中，我们考虑了最近引入的双反伽马-伽马（IGGG）湍流信道模型，并分析了基于无人机（UAV）的多跳自由空间光学（FSO）通信系统的性能，该系统假定采用解码-前向（DF）中继策略。基于无人机的自由空间光学（FSO）通信改善了无线连接，允许灵活部署，与地面节点建立视距（LoS）通信。信道建模包括大气湍流、非零孔径指向误差、路径损耗和到达角（AoA）波动。在具有非零孔径指向误差的 IGGG 湍流信道上，得出了中断概率 (OP)、平均误码率 (ABER) 和遍历容量 (EC) 的闭式表达式。此外，还通过渐近分析计算了分集增益和误码率/误码率下限。为了验证所有分析表达式，利用 IGGG 湍流信道模型进行了蒙特卡洛模拟。

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.