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arXiv 2602.06206cs.ITmath.IT
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利用流天线系统的无人机辅助短包通信

UAV-Enabled Short-Packet Communication via Fluid Antenna Systems

University College London(伦敦大学学院);Yonsei University(延世大学);Xi’an Jiaotong University(西安交通大学);Southeast University(东南大学);City University of Hong Kong(香港城市大学)

Xusheng Zhu, Kai-Kit Wong, Hanjiang Hong, Han Xiao, Hao Xu, Tuo Wu, Chan-Byoung Chae

AI总结:

本文提出利用流天线系统优化无人机辅助短包通信的能量效率,通过分析块误码率和系统开销,揭示了最优FAS端口数和无人机部署高度的权衡。

摘要:

本文开发了一个分析无人机辅助短包通信的框架,利用流天线系统(FAS)辅助中继网络。在短包 regime 中运行,并专注于具有挑战性的城市环境,我们推导出新的闭合形式表达式用于块误码率(BLER)。这通过一种可处理的特征值方法建模空间相关 Nakagami-m 信道衰落。还给出了高信噪比(SNR)渐近分析,揭示了系统的根本分集阶。在此分析基础上,我们提出了一个新颖的能量效率(EE)最大化问题,不同于理想模型,它唯一地纳入了FAS端口选择的非平凡时间和能量开销。提出了一种高效的分层算法,以联合优化关键系统参数。数值结果验证了我们的分析,证明虽然FAS提供了显著的功率增益,但操作开销造成了关键的权衡。这种权衡决定了FAS端口的最优数量和非平凡的无人机部署高度,由阻塞和路径损耗之间的平衡所决定。这项工作为FAS辅助的无人机通信提供了关键见解。

英文摘要:

This paper develops a framework for analyzing UAV-enabled short-packet communication, leveraging fluid antenna system (FAS)-assisted relaying networks. Operating in the short-packet regime and focusing on challenging urban environments, we derive novel, closed-form expressions for the block error rate (BLER). This is achieved by modeling the spatially correlated Nakagami-$m$ fading link via a tractable eigenvalue-based approach. A high-signal-to-noise ratio (SNR) asymptotic analysis is also presented, revealing the system's fundamental diversity order. Building on this analysis, we formulate a novel energy efficiency (EE) maximization problem that, unlike idealized models, uniquely incorporates the non-trivial time and energy overheads of FAS port selection. An efficient hierarchical algorithm is proposed to jointly optimize key system parameters. Numerical results validate our analysis, demonstrating that while FAS provides substantial power gains, the operational overhead creates a critical trade-off. This trade-off dictates an optimal number of FAS ports and a non-trivial optimal UAV deployment altitude, governed by the balance between blockage and path loss. This work provides key insights for FAS-aided UAV communications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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