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Model-Based End-to-End Learning for Multi-Target Integrated Sensing and Communication under Hardware Impairments

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Title: Model-Based End-to-End Learning for Multi-Target Integrated Sensing and Communication under Hardware Impairments
Authors: Mateos Ramos, José Miguel, 1998, Häger, Christian, 1986, Keskin, Musa Furkan, 1988, Le Magoarou, Luc, Wymeersch, Henk, 1976
Source: SAICOM Hårdvarumedveten integrerad lokalisering och avkänning för kommunikationssystem A holistic flagship towards the 6G network platform and system, to inspire digital transformation, for the world to act together in meeting needs in society and ecosystems with novel 6G services Fysikbaserad djupinlärning för optisk dataöverföring och distribuerad avkänning IEEE Transactions on Wireless Communications. 24(3):2574-2589
Subject Terms: model-based learning, orthogonal matching pursuit (OMP), machine learning, Hardware impairments, integrated sensing and communication (ISAC)
Description: We study model-based end-to-end learning in the context of integrated sensing and communication (ISAC) under hardware impairments. Hardware impairments are usually addressed by means of array calibration with a focus on communication performance. However, residual impairments may exist that affect sensing performance. This paper proposes a data-driven framework for mitigating such impairments. A monostatic orthogonal frequency-division multiplexing (OFDM) sensing and multiple-input single-output (MISO) communication scenario is considered, incorporating hardware imperfections at the ISAC transceiver antenna array. We propose a novel differentiable version of the orthogonal matching pursuit (OMP) algorithm that is suitable for multi-target sensing and allows for efficient end-to-end learning of the hardware impairments. Based on the differentiable OMP, we devise two model-based parameterization strategies of the ISAC beamformer and sensing receiver to account for hardware impairments: (i) learning a dictionary of steering vectors for different angles and (ii) learning the parameterized hardware impairments. We carry out a comprehensive performance analysis of the proposed model-based learning approaches and a strong baseline consisting of least-squares beamforming, conventional OMP, and maximum-likelihood symbol detection for communication. Results show that by parameterizing the hardware impairments, learning approaches offer gains in terms of higher detection probability, position estimation accuracy, and lower symbol error rate (SER) compared to the baseline. We demonstrate that learning the parameterized hardware impairments outperforms learning a dictionary of steering vectors, also exhibiting the lowest complexity.
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  Data: Model-Based End-to-End Learning for Multi-Target Integrated Sensing and Communication under Hardware Impairments
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  Data: <searchLink fieldCode="AR" term="%22Mateos+Ramos%2C+José+Miguel%22">Mateos Ramos, José Miguel</searchLink>, 1998<br /><searchLink fieldCode="AR" term="%22Häger%2C+Christian%22">Häger, Christian</searchLink>, 1986<br /><searchLink fieldCode="AR" term="%22Keskin%2C+Musa+Furkan%22">Keskin, Musa Furkan</searchLink>, 1988<br /><searchLink fieldCode="AR" term="%22Le+Magoarou%2C+Luc%22">Le Magoarou, Luc</searchLink><br /><searchLink fieldCode="AR" term="%22Wymeersch%2C+Henk%22">Wymeersch, Henk</searchLink>, 1976
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  Data: <i>SAICOM Hårdvarumedveten integrerad lokalisering och avkänning för kommunikationssystem A holistic flagship towards the 6G network platform and system, to inspire digital transformation, for the world to act together in meeting needs in society and ecosystems with novel 6G services Fysikbaserad djupinlärning för optisk dataöverföring och distribuerad avkänning IEEE Transactions on Wireless Communications</i>. 24(3):2574-2589
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  Data: <searchLink fieldCode="DE" term="%22model-based+learning%22">model-based learning</searchLink><br /><searchLink fieldCode="DE" term="%22orthogonal+matching+pursuit+%28OMP%29%22">orthogonal matching pursuit (OMP)</searchLink><br /><searchLink fieldCode="DE" term="%22machine+learning%22">machine learning</searchLink><br /><searchLink fieldCode="DE" term="%22Hardware+impairments%22">Hardware impairments</searchLink><br /><searchLink fieldCode="DE" term="%22integrated+sensing+and+communication+%28ISAC%29%22">integrated sensing and communication (ISAC)</searchLink>
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  Data: We study model-based end-to-end learning in the context of integrated sensing and communication (ISAC) under hardware impairments. Hardware impairments are usually addressed by means of array calibration with a focus on communication performance. However, residual impairments may exist that affect sensing performance. This paper proposes a data-driven framework for mitigating such impairments. A monostatic orthogonal frequency-division multiplexing (OFDM) sensing and multiple-input single-output (MISO) communication scenario is considered, incorporating hardware imperfections at the ISAC transceiver antenna array. We propose a novel differentiable version of the orthogonal matching pursuit (OMP) algorithm that is suitable for multi-target sensing and allows for efficient end-to-end learning of the hardware impairments. Based on the differentiable OMP, we devise two model-based parameterization strategies of the ISAC beamformer and sensing receiver to account for hardware impairments: (i) learning a dictionary of steering vectors for different angles and (ii) learning the parameterized hardware impairments. We carry out a comprehensive performance analysis of the proposed model-based learning approaches and a strong baseline consisting of least-squares beamforming, conventional OMP, and maximum-likelihood symbol detection for communication. Results show that by parameterizing the hardware impairments, learning approaches offer gains in terms of higher detection probability, position estimation accuracy, and lower symbol error rate (SER) compared to the baseline. We demonstrate that learning the parameterized hardware impairments outperforms learning a dictionary of steering vectors, also exhibiting the lowest complexity.
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        Value: 10.1109/TWC.2024.3522667
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      – Text: English
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      – SubjectFull: model-based learning
        Type: general
      – SubjectFull: orthogonal matching pursuit (OMP)
        Type: general
      – SubjectFull: machine learning
        Type: general
      – SubjectFull: Hardware impairments
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      – SubjectFull: integrated sensing and communication (ISAC)
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      – TitleFull: Model-Based End-to-End Learning for Multi-Target Integrated Sensing and Communication under Hardware Impairments
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            NameFull: Mateos Ramos, José Miguel
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              Y: 2025
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            – TitleFull: SAICOM Hårdvarumedveten integrerad lokalisering och avkänning för kommunikationssystem A holistic flagship towards the 6G network platform and system, to inspire digital transformation, for the world to act together in meeting needs in society and ecosystems with novel 6G services Fysikbaserad djupinlärning för optisk dataöverföring och distribuerad avkänning IEEE Transactions on Wireless Communications
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