This paper reveals the latent relation inherent in two typical problems in constructive interference (CI)-based symbol-level precoding (SLP). One is the power minimization (PM) problem subject to instantaneous signal-to-interference-plus-noise ratio (SINR) constraints, and the other is the weighted max-min SINR balancing (SB) problem with the symbol-level transmit power budget. In particular, we establish an explicit duality between the PM-SLP and SB-SLP problems, where we prove that one of the two problems can be uniquely mapped to the other. The proposed duality not only provides insights into the intrinsic structure of the problems and solutions but also facilitates obtaining the solution to the SB-SLP given the solution to the PM-SLP without the need for one-dimension search, and vice versa. We further propose a closed-form power scaling algorithm to solve the SB-SLP via PM-SLP, by which the separability of the PM-SLP can be leveraged to solve the two problems simultaneously. Numerical results demonstrate our derivations on the duality as well as the efficiency of the proposed power scaling algorithm.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Duality Between the Power Minimization and Max-Min SINR Balancing Symbol-Level Precoding


    Beteiligte:
    Yang, Junwen (Autor:in) / Li, Ang (Autor:in) / Liao, Xuewen (Autor:in) / Masouros, Christos (Autor:in)


    Erscheinungsdatum :

    01.06.2023


    Format / Umfang :

    399166 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    SYMBOL VS BLOCK LEVEL PRECODING IN MULTI-BEAM SATELLITE SYSTEMS

    Kayhan, F. / Haqiqatnejad, A. / Grotz, J. et al. | TIBKAT | 2019


    Unsupervised Learning Based Symbol-Level Precoding Design for Amplitude Phase Modulation

    Zhao, Liangyuan / Ju, Hao / Ou, Xiaowu et al. | IEEE | 2024


    Symbol Level Beam Selection and Precoding in mm-wave Beamspace MU-MISO Systems

    Choi, Yongin / Oh, Jinwoo / Kwon, Yangsoo et al. | IEEE | 2021



    Peak-to-Average Power Ratio Reduction via Symbol Precoding in OTFS Modulation

    Su, Jingyi / Liu, Shengheng / Huang, Yongming et al. | IEEE | 2022