On the Fundamental Tradeoff of Integrated Sensing and Communications Under Gaussian Channels

Integrated Sensing and Communication (ISAC) is recognized as a promising technology for the next-generation wireless networks, which provides significant performance gains over individual sensing and communications (S&C) systems via the shared use of wireless resources. The characterization of the S&C performance tradeoff is at the core of the theoretical foundation of ISAC. In this paper, we consider a point-to-point (P2P) ISAC model under vector Gaussian channels, and propose to use the Cramér-Rao bound (CRB)-rate region as a basic tool for depicting the fundamental S&C tradeoff. In particular, we consider the scenario where a unified ISAC waveform is emitted from a dual-functional ISAC transmitter (Tx),…

• UO
  University of Southampton
• UC
  University College London
• UO
  University of New South Wales
• UO
  University of Technology Sydney
• UO
  University of Wollongong
• NN
  National Natural Science Foundation of China

  Awards: 62101234, 20220815100308002, RCBS20210609103227018
• BU
  Beijing University of Posts and Telecommunications
• HU
  Henan University
• BI
  Beijing Institute of Technology
• SU
  Southern University of Science and Technology
• GP
  Guangdong Provincial Pearl River Talents Program

  Award: 2021QN02X128
• SS
  Shenzhen Science and Technology Innovation Program

  Awards: RCBS20210609103227018, 20220815100308002