This paper studies the beamformer design for an integrated sensing and communication system where simultaneous communication for multiple downlink users and bistatic sensing for a point target are realized. Firstly, to avoid self-interference in monostatic settings, we establish the bistatic sensing model where the sensing performance is measured by the Cramér-Rao bound (CRB) for the target's coordinates and the communication performance by the signal-to-interference-plus-noise ratio (SINR). We aim to minimize the CRB while ensuring a predefined SINR for each user. Then, we derive a closed-form beamformer for the single-user case that proves near-optimal. For the multi-user case, we introduce a beamformer design algorithm based on semidefinite relaxation and a suboptimal design algorithm based on successive convex approximation with reduced complexity. Finally, numerical results are provided to validate the solutions.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Joint Radar-Communication Beamforming for CRB-Based Target Localization


    Contributors:
    Mao, Tianhao (author) / Yang, Jie (author) / Liang, Le (author) / Jin, Shi (author)


    Publication date :

    2024-06-24


    Size :

    693498 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Hybrid Beamforming for Dual-Functional Radar-Communication Systems

    Yang, Wei-Chih / Chang, Hsin-Yuan / Chang, Ronald Y. et al. | IEEE | 2023




    Radar-Assisted Predictive Beamforming for Vehicular Links: Communication Served by Sensing

    Liu, F / Yuan, W / Masouros, C et al. | BASE | 2020

    Free access