Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/11596
Title: When are Sensing Symbols Required for ISAC?
Authors: Salman, M.B.
Demir, O.T.
Bjornson, E.
Keywords: Array signal processing
DFRC
ISAC
MIMO communication
PAPR-aware beamforming
Peak to average power ratio
Radar
Sensors
Signal to noise ratio
Vectors
Array processing
Beamforming
Radar signal processing
Array signal processing
DFRC
Integrated sensing
Integrated sensing and communication
MIMO communication
Peak-to-average-power ratio-aware beamforming
Peakto-average power ratios (PAPR)
Sensing signals
Waveforms
Signal to noise ratio
Publisher: Institute of Electrical and Electronics Engineers Inc.
Abstract: This paper investigates beamforming strategies for integrated sensing and communication (ISAC) systems, where shared signal resources are employed for these services. The proposed framework focuses on maximizing the signal-to-noise ratio (SNR) of the target echo while satisfying the communication rate requirement. Addressing the challenges posed by the higher peak-to-average-power ratio (PAPR) of communication waveforms than sensing waveforms, we provide a detailed analysis and offer valuable insights into power assignment techniques that account for PAPR considerations. We reveal that the integration of constant-modulus sensing signals results in a substantial enhancement in sensing SNR, and numerical results underscore the effectiveness of leveraging sensing signals within the ISAC framework. These findings highlight the potential for achieving superior sensing performance by using dedicated constant-modulus sensing signals. IEEE
URI: https://doi.org/10.1109/TVT.2024.3399935
https://hdl.handle.net/20.500.11851/11596
ISSN: 0018-9545
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

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