arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2104.03540eess.SP
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基于MAP的U2V mmWave通信信道建模与生成

Map-based Channel Modeling and Generation for U2V mmWave Communication

Qiuming Zhu, Kai Mao, Maozhong Song, Xiaomin Chen, Boyu Hua, Weizhi Zhong, Xijuan Ye

摘要:

无人机辅助毫米波技术在未来通信网络中具有广阔的应用前景。综合考虑三维散射空间、三维弹道和三维天线阵等因素,提出了一种适用于无人机对飞行器(U2V)毫米波通信的非平稳信道模型。详细分析了信道参数的计算和生成方法,包括径间和径内参数。路径间参数以确定性方式计算,而路径内射线的参数以随机方式产生。通过对大量射线追踪(RT)数据使用高斯混合模型(GMM)获得的统计特性。在此基础上,提出了一种改进的等面积法(MMEA)来产生随机路径内变量。同时,为了降低RT方法的复杂度,基于用户自定义的数字地图重建三维传播空间。仿真分析结果表明,所提出的模型和生成方法能够生成符合U2V场景的非平稳U2V信道。生成的统计特性与理论和测量的一致。

英文摘要:

Unmanned aerial vehicle (UAV) aided millimeter wave (mmWave) technologies have a promising prospect in the future communication networks. By considering the factors of three-dimensional (3D) scattering space, 3D trajectory, and 3D antenna array, a non-stationary channel model for UAV-to-vehicle (U2V) mmWave communications is proposed. The computation and generation methods of channel parameters including interpath and intra-path are analyzed in detail. The inter-path parameters are calculated in a deterministic way, while the parameters of intra-path rays are generated in a stochastic way. The statistical properties are obtained by using a Gaussian mixture model (GMM) on the massive ray tracing (RT) data. Then, a modified method of equal areas (MMEA) is developed to generate the random intra-path variables. Meanwhile, to reduce the complexity of RT method, the 3D propagation space is reconstructed based on the user-defined digital map. The simulated and analyzed results show that the proposed model and generation method can reproduce non-stationary U2V channels in accord with U2V scenarios. The generated statistical properties are consistent with the theoretical and measured ones as well.

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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