A Joint Radar-Communication Precoding Design Based on Cramér-Rao Bound Optimization

Fan Liu, Ya Feng Liu, Christos Masouros, Ang Li, Yonina C. Eldar

Research output: Contribution to journalConference articlepeer-review

Abstract

This paper investigates joint radar-communication (JRC) transmission, where a JRC precoder is designed to simultaneously perform target sensing and information signaling. We minimize the Cramér-Rao Bound (CRB) for target estimation, while guaranteeing the per-user signal-to-interference-plus-noise ratio (SINR) in the downlink. While the formulated problem is non-convex in general, we propose an efficient successive convex approximation (SCA) method, which solves a second-order cone program (SOCP) subproblem at each iteration. Numerical results demonstrate the effectiveness of the proposed JRC precoding design, showing that the SCA algorithm is able to approach the convex relaxation bound, which significantly outperforms conventional benchmark solvers in terms of both complexity and performance.

Original languageEnglish
JournalProceedings of the IEEE Radar Conference
DOIs
StatePublished - 2022
Externally publishedYes
Event2022 IEEE Radar Conference, RadarConf 2022 - New York City, United States
Duration: 21 Mar 202225 Mar 2022

Keywords

  • Cramér-Rae bound
  • Joint radar-communication
  • semidefinite relaxation
  • successive convex approximation

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

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