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Millimeter wave beamforming training, discovery and association using WiFi positioning in outdoor urban environment

机译：在室外城市环境中使用WiFi定位进行毫米波波束成形训练，发现和关联

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摘要

Millimeter wave (mmWave) communication is considered as the most promising solution for future 5G cellular networks. However, it suffers from a severe propagation loss causing dramatic link quality degradation and limiting its coverage area. Antenna beamforming appears to be a suitable solution to overcome this problem and provides longer transmission outdoor mmWave links. Accordingly, highly complicated conventional beamforming training (BT) techniques based on exhaustively searching all beam settings in all possible directions are used for mmWave discovery and association. This results in a long-time delay and a high-power consumption mmWave small cell discovery and association due to the large BT overhead. In this paper, a paradigm of mmWave small cell BT, discovery and association based on WiFi localization is proposed especially for local outdoor urban environments, e.g., campus area. Due to the use of beamforming, mmWave becomes a location-driven wireless communication system, hence positioning can extremely relax the complexity of mmWave link establishment. Simulation results show the high potency of the proposed scheme in reducing the complexity of mmWave BT, discovery and association compared to the conventional scheme of exhaustively searching all beam directions.
机译：毫米波（mmWave）通信被认为是未来5G蜂窝网络最有希望的解决方案。但是，它遭受严重的传播损耗，导致链路质量急剧下降，并限制了其覆盖范围。天线波束成形似乎是克服此问题的合适解决方案，并提供了更长的室外mmWave链路传输。因此，基于穷举地搜索所有可能方向上的所有波束设置的高度复杂的常规波束成形训练（BT）技术被用于mmWave发现和关联。由于大的BT开销，这导致了长时间延迟和高功耗mmWave小小区发现和关联。本文提出了一种基于WiFi定位的mmWave小小区BT，发现和关联的范例，特别是针对本地室外城市环境（例如校园区域）。由于使用波束成形，mmWave成为了位置驱动的无线通信系统，因此定位可以极大地放松mmWave链路建立的复杂性。仿真结果表明，与穷举搜索所有波束方向的常规方案相比，该方案在降低mmWave BT，发现和关联的复杂度方面具有很高的效力。

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