Channel Characterization for Vehicle-to-Infrastructure Communications in Millimeter-Wave Band

IEEE Access

Heesang Chung¹  Junhyeong Kim¹  Ke Guan²  Zhangdui Zhong²  Zan Li²  Danping He²  Dong Yan²  Bo Ai² 

[1] Moving Wireless Network Research Section, Electronics and Telecommunications Research Institute (ETRI), Daejeon, South Korea;State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing, China;

关键词: Channel characterization;    millimeter-wave communication;    ray-tracing simulation;    vehicle-to-infrastructure link;    wave propagation;   

DOI  :  10.1109/ACCESS.2020.2977208

来源: DOAJ

【 摘 要 】

In recent years, the intelligent transport system (ITS) has been developed rapidly because of global urbanization and industrialization, which is considered as the key enabling technology to improve road safety, traffic efficiency, and driving experience. To achieve these goals, vehicles need to be equipped with a large number of sensors to enable the generation and exchange of high-rate data streams. Recently, millimeter-wave (mmWave) technology has been introduced as a means of meeting such a high data rate requirement. In this paper, a comprehensive study on the channel characteristics for vehicle-to-infrastructure (V2I) link in mmWave band (22.1-23.1 GHz) for various road environments and deployment configurations is conducted. The self-developed ray-tracing (RT) simulator is employed with the calibrated electromagnetic (EM) parameters. The three-dimensional (3D) environment models are reconstructed from the OpenStreetMap (OSM). In the simulations, not only the vehicle user equipment (UE) moves, but also the other vehicles such as cars, delivery vans, and buses move around the vehicle UE. Moreover, the impacts of the receiver (Rx) multiple antennas and beam switching technologies at the vehicle UE are evaluated as well. The channel parameters of the V2I link in mmWave band, including received power, Rician $K$ -factor, root-mean-square delay spread, and angular spreads are explored in the target scenarios under different simulation deployments. This work aims to help the researchers understand the channel characteristics of the V2I links in mmWave band and support the link-level and system-level design for future vehicular communications.

【 授权许可】

Unknown