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Link-level simulator for 5G localization

Xinghua JiaPeng LiuWangdong Qi ...+4 Xiaohu You
Dec 2022
摘要
Channel-state-information-based localization in 5G networks has been apromising way to obtain highly accurate positions compared to previouscommunication networks. However, there is no unified and effective platform tosupport the research on 5G localization algorithms. This paper releases alink-level simulator for 5G localization, which can depict realistic physicalbehaviors of the 5G positioning signal transmission. Specifically, we firstdevelop a simulation architecture considering more elaborate parameterconfiguration and physical-layer processing. The architecture supports the linkmodeling at sub-6GHz and millimeter-wave (mmWave) frequency bands.Subsequently, the critical physical-layer components that determine thelocalization performance are designed and integrated. In particular, alightweight new-radio channel model and hardware impairment functions thatsignificantly limit the parameter estimation accuracy are developed. Finally,we present three application cases to evaluate the simulator, i.e.two-dimensional mobile terminal localization, mmWave beam sweeping, andbeamforming-based angle estimation. The numerical results in the applicationcases present the performance diversity of localization algorithms in variousimpairment conditions.
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