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- W4385261750 abstract "This paper investigates a novel underlaid sensing pilot signal design for integrated sensing and communications (ISAC) in an OFDM-based communication system. The proposed two-dimensional (2D) pilot signal is first generated on the delay-Doppler (DD) plane and then converted to the time-frequency (TF) plane for multiplexing with the OFDM data symbols. The sensing signal underlays the OFDM data, allowing for the sharing of time-frequency resources. In this framework, sensing detection is implemented based on a simple 2D correlation, taking advantage of the favorable auto-correlation properties of the sensing pilot. In the communication part, the sensing pilot, served as a known signal, can be utilized for channel estimation and equalization to ensure optimal symbol detection performance. The underlaid sensing pilot demonstrates good scalability and can adapt to different delay and Doppler resolution requirements without violating the OFDM frame structure. Experimental results show the effective sensing performance of the proposed pilot, with only a small fraction of power shared from the OFDM data, while maintaining satisfactory symbol detection performance in communication." @default.
- W4385261750 created "2023-07-26" @default.
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- W4385261750 date "2023-07-24" @default.
- W4385261750 modified "2023-10-18" @default.
- W4385261750 title "Underlaid Sensing Pilot for Integrated Sensing and Communications" @default.
- W4385261750 doi "https://doi.org/10.48550/arxiv.2307.12595" @default.
- W4385261750 hasPublicationYear "2023" @default.
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