IRS-Assisted Joint Broadcast/Multicast Resource Allocation and Cooperative Perception Optimization for 6G V2X Networks

IF 5.9 1区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Broadcasting Pub Date : 2026-03-01 Epub Date: 2025-10-07 DOI:10.1109/TBC.2025.3611640

Fei Qi;Qian Huang;Yinan Wang;Pingping Lin;Chunxia Hu;Xuan Shi

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引用次数: 0

Abstract

Aiming at the coexistence challenges of highly reliable broadcast/multicast communication and high-precision cooperative sensing in 6G vehicular networking, this paper proposes an IRS-enhanced joint optimization framework. First, an IRS-assisted millimeter-wave-terahertz heterogeneous network architecture is constructed to reconfigure multi-vehicle communication links through dynamically programmable reflective units to solve the signal occlusion and interference problems in traditional multicast scenarios; second, a cooperative sensing task modeling method based on GAT is designed to fuse LiDAR point-cloud data and camera information into spatio-temporal sensing features to drive dynamic resource allocation demand; finally, the HFRL algorithm is proposed to jointly optimize the IRS phase matrix, broadcast spectrum allocation, computational offloading strategy and perception task priority. The simulation results show that the sensing accuracy has increased from 68.5% of the baseline to 90.5%, the URLLC reliability is 99.999%, and the spectral efficiency is 5.2 bps/Hz.

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基于irs辅助的6G V2X联合广播/组播资源分配与协同感知优化

针对6G车联网中高可靠广播/组播通信与高精度协同感知共存的挑战，提出了一种irs增强型联合优化框架。首先，构建了irs辅助的毫米波-太赫兹异构网络架构，通过动态可编程反射单元重构多车通信链路，解决了传统组播场景下的信号遮挡和干扰问题；其次，设计了一种基于GAT的协同传感任务建模方法，将激光雷达点云数据和相机信息融合到时空传感特征中，驱动动态资源分配需求；最后，提出了HFRL算法，共同优化IRS相位矩阵、广播频谱分配、计算卸载策略和感知任务优先级。仿真结果表明，传感精度由基线的68.5%提高到90.5%，URLLC可靠性为99.999%，频谱效率为5.2 bps/Hz。

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 Transactions on Broadcasting 工程技术-电信学

CiteScore

9.40

自引率

31.10%

发文量

审稿时长

6-12 weeks

期刊介绍： The Society’s Field of Interest is “Devices, equipment, techniques and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.” In addition to this formal FOI statement, which is used to provide guidance to the Publications Committee in the selection of content, the AdCom has further resolved that “broadcast systems includes all aspects of transmission, propagation, and reception.”