NEWS ARTICLE
学术动态：Multi-RIS-Assisted UAV-Enabled V2X Communications Under Mobility-Aware CSI Aging
论文标题：Multi-RIS-Assisted UAV-Enabled V2X Communications Under Mobility-Aware CSI Aging
发布日期：2026-05-26
作者：Paras Miglani, Aryan Garg, Harshvardhan Singh, Avinash Chandra, Vijay Kumar
DOI：10.3390/s26113355
论文摘要：Vehicle-to-everything (V2X) communication systems impose stringent latency and reliability requirements that are difficult to satisfy in highly dynamic wireless environments. Although reconfigurable intelligent surfaces (RISs) and unmanned aerial vehicles (UAVs) have independently demonstrated potential in enhancing wireless coverage, most existing RIS–UAV frameworks rely on idealized assumptions such as perfect channel state information (CSI) and static user scenarios. In this paper, a multi-RIS-assisted UAV-enabled V2X communication framework is proposed that explicitly accounts for vehicular mobility, latency constraints, and mobility-induced CSI aging. Multiple RIS panels are cooperatively deployed to eliminate coverage blind spots and ensure link continuity in realistic V2X environments. A joint UAV mobility and RIS phase optimization approach is proposed under outdated CSI to improve link reliability. Additionally, a time-varying performance analysis is carried out for understanding the dynamic behavior of signal-to-noise ratio (SNR) and average bit error rate (ABER) for mobility-aware CSI aging. Simulation results demonstrate that the proposed framework reduces the ABER by approximately 75% compared to a conventional single-RIS system under outdated CSI at 20 dB SNR (1.07×10−1 vs. 4.32×10−1), while substantially suppressing outage intervals in high-mobility V2X scenarios (v=20 m/s, CSI delay τ=20 ms), confirming the effectiveness of cooperative multi-RIS assistance for safety-critical vehicular communications.
元数据：Crossref 收录的 MDPI Sensors 论文。 DOI: 10.3390/s26113355. Vol. 26, Issue 11. Authors: Paras Miglani, Aryan Garg, Harshvardhan Singh, Avinash Chandra, Vijay Kumar.
开放许可：https://creativecommons.org/licenses/by/4.0/
原文链接：https://doi.org/10.3390/s26113355
PDF 链接：https://www.mdpi.com/1424-8220/26/11/3355/pdf