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Coding for Sensing: An Improved Scheme for Integrated Sensing and Communication over MACs

Abstract : A memoryless state-dependent multiple-access channel (MAC) is considered, where two transmitters wish to convey their messages to a single receiver while simultaneously sensing (estimating) the respective states via generalized feedbacks. For this channel, an improved inner bound is provided on the fundamental rate-distortions tradeoff which characterizes the communication rates the transmitters can achieve while simultaneously ensuring that their state-estimates satisfy desired distortion criteria. The new inner bound is based on a scheme where each transmitter codes over the generalized feedback so as to improve the state estimation at the other transmitter. This is in contrast to the schemes proposed for point-to-point and broadcast channels where coding is used only for the transmission of messages and the optimal estimators operate on a symbol-bysymbol basis on the sequences of channel inputs and feedback outputs.
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Contributor : Michèle Wigger Connect in order to contact the contributor
Submitted on : Wednesday, June 22, 2022 - 6:07:47 PM
Last modification on : Friday, July 1, 2022 - 2:19:03 PM
Long-term archiving on: : Friday, September 23, 2022 - 7:07:21 PM


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  • HAL Id : hal-03702137, version 1


Mehrasa Ahmadipour, Michèle Wigger, Mari Kobayashi. Coding for Sensing: An Improved Scheme for Integrated Sensing and Communication over MACs. IEEE International Symposium on Information Theory, Jun 2022, Espoo, Finland. ⟨hal-03702137⟩



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