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Multi-lane urban mmWave V2V networks: A path loss behaviour dependent coverage analysis
Vehicular Communications ( IF 6.7 ) Pub Date : 2021-03-04 , DOI: 10.1016/j.vehcom.2021.100348
Mumin Ozpolat , Kushagra Bhargava , Erik Kampert , Matthew D. Higgins

Vehicular cooperative autonomy characteristics such as adaptive platooning and collision avoidance are enabled only through the capability to reliably exchange, at multi-Gbps speeds, an ever growing quantity of data that are being generated by light detection and ranging (LIDAR), HD video, radar, and other sensors. Due to its high bandwidth availability, the mmWave communication channel is expected to act as the required, underpinning technological enabler. In this paper, a tractable analytical model for an in-lane routing scheme that approximates the coverage, rate coverage and an adaptation of area spectral efficiency of mmWave urban Vehicle-to-Vehicle networks is proposed. The analytical model is proposed for three different path loss behaviour scenarios, namely, Line-of-Sight, Non-Line-of-Sight, and Obstructed-Line-of-Sight. Each scenario is based upon corresponding, previously reported, experimental mmWave measurements and path loss models. It is shown that Non-Line-of-Sight behaviour provides the best performance in coverage, but the lowest reliability. Moreover, the careful choice of link distances, i.e. forcing communication to be limited to the nearest vehicle, removes the sensitivity of the system to interferences from increased vehicle density, which is an important result to be considered in dense urban networks. Additionally, it is found that narrowing the beamwidth significantly improves the performance, which is the result of eliminated interferences, rather than a corresponding increase in antenna gain. The results of this research will impact both communications systems infrastructure designers and vehicle manufacturers looking to balance system performance in the investigated scenarios.



中文翻译:

多车道城市mmWave V2V网络:路径损耗行为相关的覆盖率分析

只有通过以多Gbps速度可靠地交换由光检测和测距(LIDAR),高清视频,雷达生成的数据量不断增加的能力,才能启用诸如自适应排行和避免碰撞之类的车辆协作自主性特征。 ,以及其他传感器。由于其高带宽可用性,mmWave通信通道有望充当所需的通道,从而支撑技术推动力。本文提出了一种车内路由方案的可分析模型,该模型可以近似地估算毫米波城市车车网络的覆盖范围,速率覆盖范围和对区域频谱效率的适应性。针对三种不同的路径损耗行为场景,提出了分析模型,即视线,非视线和受阻视线。每种情况均基于相应的,先前已报告的实验性毫米波测量和路径损耗模型。结果表明,“非视线”行为在覆盖范围内提供了最佳性能,但可靠性却最低。此外,对链路距离的谨慎选择(即,将通信限制在最近的车辆上)消除了系统对来自增加的车辆密度的干扰的敏感性,这是在密集的城市网络中要考虑的重要结果。另外,发现缩小波束宽度显着改善了性能,这是消除干扰的结果,而不是天线增益的相应增加。

更新日期:2021-03-09
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