141 GHz信号在植被中传播的测量和建模OA
Measurement and modeling of 141 GHz signal propagation in vegetation
太赫兹(0.1～10 THz)通信凭借其实现每秒太比特数据速率的潜力,被广泛视为6G网络中极具前途的技术,为高容量无线通信带来了新的希望.然而,太赫兹无线传播特性相比已有低频频谱具有强差异.其中,植被引起的太赫兹无线信道干扰是一个重大难题,如何构建植被干扰下的信道模型成为太赫兹通信应用的关键条件.为此,开展141 GHz大气窗口频率的太赫兹信道测量研究,应用VED和对数域线性损耗模型两种建模方法.通过多次实验测量小叶赤楠,发现植被引入角度和水平位置会影响功率损耗,且信道统计特性呈重尾稳定分布(Heavy-tailed Stable Distribu-tion),而不是传统的Rician或Weibull模型.
As a key enabling technology for 6G networks,terahertz(0.1–10 THz)communication is ex-pected to deliver terabit-per-second(Tbit/s)data rates.However,its practical deployment is hindered by unique propagation challenges,most notably severe signal attenuation caused by vegetation,which is starkly different from lower-frequency bands.Addressing this requires accurate channel modeling.This study presents channel measurements at the 141 GHz atmospheric window to investigate vegetation ef-fects on THz propagation.We employ two modeling approaches the VED model and a log-domain linear loss model based on extensive measurements using Syzygium buxifolium.Our results reveal that signal at-tenuation is strongly dependent on the vegetation's angle and horizontal position.Critically,we demon-strate that the channel statistics are best described by a heavy-tailed stable distribution,deviating from the conventional Rician or Weibull distributions.
陈兴民;杨闯;蒋志伟;袁仁智;彭木根
北京邮电大学 信息与通信工程学院,北京 100876北京邮电大学 信息与通信工程学院,北京 100876北京邮电大学 信息与通信工程学院,北京 100876北京邮电大学 信息与通信工程学院,北京 100876北京邮电大学 信息与通信工程学院,北京 100876
信息技术与安全科学
太赫兹信道功率损耗植被
terahertz channelpower lossvegetation
《南京邮电大学学报（自然科学版）》 2026 (1)
10-15,6
北京市自然科学基金(L223007)资助项目
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