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首页> 外文会议>International Conference on Next Generation Wired/Wireless Networking;Conference on Internet of Things and Smart Spaces >Ray-Based Modeling of Unlicensed-Band mm Wave Propagation Inside a City Bus
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Ray-Based Modeling of Unlicensed-Band mm Wave Propagation Inside a City Bus

机译：城市公交车内无牌照毫米波传播的基于射线的建模

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摘要

In the wake of recent hardware developments, augmented, mixed, and virtual reality applications - grouped under an umbrella term of eXtended reality (XR) - are believed to have a transformative effect on customer experience. Among many XR use cases, of particular interest are crowded commuting scenarios, in which passengers are involved in in-bus/in-train entertainment, e.g., high-quality video or 3D hologram streaming and AR/VR gaining. In the case of a city bus, the number of commuting users during the busy hours may exceed forty, and, hence, could pose far higher traffic demands than the existing microwave technologies can support. Consequently, the carrier candidate for XR hardware should be sought in the millimeter-wave (mmWave) spectrum; however, the use of mm Wave cellular frequencies may appear impractical due to the severe attenuation or blockage by the modern metal coating of the glass. As a result, mtra-vehicle deployment of unlicensed mm Wave access points becomes the most promising solution for bandwidth-hungry XR devices. In this paper, we present the calibrated results of shooting-and-bouncing ray simulation at 60 GHz for the bus interior. We analyze the delay and angular spread, estimate the parameters of the Saleh-Valenzuela channel model, and draw important practical conclusions regarding the intra-vehicle propagation at 60 GHz.
机译：随着最近硬件的发展，增强，混合和虚拟现实应用程序（被归类为扩展现实（XR）的总称）被认为会对客户体验产生变革性的影响。在许多XR用例中，特别令人感兴趣的是拥挤的通勤场景，其中乘客参与了公共汽车/火车内娱乐，例如高质量视频或3D全息图流以及AR / VR增益。在城市公交车的情况下，繁忙时段的通勤用户数可能超过40，因此可能带来比现有微波技术所能支持的更高的流量需求。因此，应在毫米波（mmWave）频谱中寻找XR硬件的候选载波。然而，由于现代玻璃金属涂层的严重衰减或阻塞，毫米波蜂窝频率的使用似乎不切实际。结果，未经许可的毫米波接入点的车载部署成为了对带宽要求很高的XR设备最有希望的解决方案。在本文中，我们介绍了总线内部在60 GHz处发射和反射射线模拟的校准结果。我们分析了延迟和角展度，估计了Saleh-Valenzuela信道模型的参数，并对60 GHz的车内传播得出了重要的实用结论。

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