Abstract

Millimeter wave (mmWave) communication has emerged as a key technology for achieving high data throughput and low latency in 5G networks. Thanks to the large channel bandwidths in the mmWave spectrum (e.g. 2.16 GHz in the 57-66 GHz band), mmWave technology allows precise and accurate time of flight (ToF) measurements, hence supporting precise and accurate positioning. In this paper, an experimental evaluation of ToF-based localization in the 60 GHz band is presented. We implemented the two-way ranging (TWR) protocol between a mobile node and multiple anchor nodes. The implementation is carried out on an own software-defined radio (SDR) baseband platform, combined with commercial 60 GHz chipsets. Tests were performed indoors in a laboratory environment. The results of our evaluation show that a positioning error of less than 5 cm can be obtained.

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