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- W4387151287 abstract "This work proposes a maximum likelihood (ML)-based parameter estimation framework for a millimeter wave (mmWave) integrated sensing and communication (ISAC) system in a multi-static configuration using energy-efficient hybrid digital-analog arrays. Due to the typically large arrays deployed in the higher frequency bands to mitigate isotropic path loss, such arrays may operate in the near-field regime. The proposed parameter estimation in this work consists of a two-stage estimation process, where the first stage is based on far-field assumptions, and is used to obtain a first estimate of the target parameters. In cases where the target is determined to be in the near-field of the arrays, a second estimation based on near-field assumptions is carried out to obtain more accurate estimates. In particular, we select beamfocusing array weights designed to achieve a constant gain over an extended spatial region and re-estimate the target parameters at the receivers. We evaluate the effectiveness of the proposed framework in numerous scenarios through numerical simulations and demonstrate the impact of the custom-designed flat-gain beamfocusing codewords in increasing the communication performance of the system." @default.
- W4387151287 created "2023-09-29" @default.
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- W4387151287 date "2023-09-26" @default.
- W4387151287 modified "2023-10-18" @default.
- W4387151287 title "Multi-static Parameter Estimation in the Near/Far Field Beam Space for Integrated Sensing and Communication Applications" @default.
- W4387151287 doi "https://doi.org/10.48550/arxiv.2309.14778" @default.
- W4387151287 hasPublicationYear "2023" @default.
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