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- W4318719218 abstract "The emergence of the fifth-generation (5G) New Radio (NR) brings additional possibilities to vehicle-to-everything (V2X) network with improved quality of services. In order to obtain accurate channel state information (CSI) in high-mobility V2X networks, pilot signals and frequent handover between vehicles and infrastructures are required to establish and maintain the communication link, which increases the overheads and reduces the communication throughput. To address this issue, integrated sensing and communications (ISAC) was employed at the base station (BS) in the vehicle-to-infrastructure (V2I) network to reduce a certain amount of overheads, thus improve the spectral efficiency. Nevertheless, the exact amount of overheads reduction remains unclear, particularly for practical NR based V2X networks. In this paper, we study a link-level NR based V2I system employing ISAC signaling to facilitate the communication beam management, where the Extended Kalman filtering (EKF) algorithm is performed to realize the functions of tracking and predicting the motion of the vehicle. We provide detailed analysis on the overheads reduction with the aid of ISAC, and show that up to 43.24% overheads can be reduced under assigned NR frame structure. In addition, numerical results are provided to validate the improved performance on the beam tracking and communication throughput." @default.
- W4318719218 created "2023-02-01" @default.
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- W4318719218 date "2023-01-30" @default.
- W4318719218 modified "2023-09-28" @default.
- W4318719218 title "ISAC-Enabled V2I Networks Based on 5G NR: How Much Can the Overhead Be Reduced?" @default.
- W4318719218 doi "https://doi.org/10.48550/arxiv.2301.12787" @default.
- W4318719218 hasPublicationYear "2023" @default.
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