双径衰减信道中超可靠通信的高效频率分集方案

IF 2.9 3区计算机科学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS

Journal of Communications and Networks Pub Date : 2024-08-01 DOI:10.23919/JCN.2024.000031

Karl-Ludwig Besser;Eduard A. Jorswieck;Justin P. Coon

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引用次数: 0

摘要

我们考虑了发射器和接收器之间距离未知的双射线地面反射情况。通过并行利用两个频率，我们可以减轻可能的破坏性干扰，并确保在发射机知识非常有限的情况下实现超可靠性。为了实现这种超可靠性，我们优化了频率间隔，使最坏情况下的接收功率最大化。此外，我们还提供了一种计算最佳频率间隔的算法。除了接收功率，我们还分析了可实现速率和中断概率。结果表明，与使用单一频率相比，频率分集方案在可靠性方面实现了显著改善。特别是，我们通过对在平坦地形上飞行的无人驾驶飞行器（UAV）进行数值模拟，证明了所提方法的有效性。

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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An efficient frequency diversity scheme for ultra-reliable communications in two-path fading channels

We consider a two-ray ground reflection scenario with unknown distance between transmitter and receiver. By utilizing two frequencies in parallel, we can mitigate possible destructive interference and ensure ultra-reliability with only very limited knowledge at the transmitter. In order to achieve this ultra-reliability, we optimize the frequency spacing such that the worst-case receive power is maximized. Additionally, we provide an algorithm to calculate the optimal frequency spacing. Besides the receive power, we also analyze the achievable rate and outage probability. It is shown that the frequency diversity scheme achieves a significant improvement in terms of reliability over using a single frequency. In particular, we demonstrate the effectiveness of the proposed approach by a numerical simulation of an unmanned aerial vehicle (UAV) flying above flat terrain.

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来源期刊

Journal of Communications and Networks 工程技术-电信学

CiteScore

6.60

自引率

5.60%

发文量

审稿时长

14.4 months

期刊介绍： The JOURNAL OF COMMUNICATIONS AND NETWORKS is published six times per year, and is committed to publishing high-quality papers that advance the state-of-the-art and practical applications of communications and information networks. Theoretical research contributions presenting new techniques, concepts, or analyses, applied contributions reporting on experiences and experiments, and tutorial expositions of permanent reference value are welcome. The subjects covered by this journal include all topics in communication theory and techniques, communication systems, and information networks. COMMUNICATION THEORY AND SYSTEMS WIRELESS COMMUNICATIONS NETWORKS AND SERVICES.