In this paper, we propose to remove the analog stage of hybrid beamforming (HYBF) in the millimeter wave (mmWave) full-duplex (FD) systems. Such a solution is highly desirable as the analog stage suffers from high insertion loss and high power consumption. Consequently, the mmWave FD nodes can operate with a fewer number of antennas, instead of relying on a massive number of antennas, and to tackle the propagation challenges of the mmWave band we propose to use near-field intelligent reflecting surfaces (NF-IRSs). The objective of the NF-IRSs is to simultaneously and smartly control the uplink (UL) and downlink (DL) channels while assisting in shaping the SI channel: this to obtain very strong passive SI cancellation. A novel joint active and passive beamforming design for the weighted sum-rate (WSR) maximization for the NF-IRSs-assisted mmWave point-to-point FD system is presented. Results show that the proposed solution fully reaps the benefits of the IRSs, only when they operate in the NF, which leads to considerably higher gains compared to the conventional massive MIMO (mMIMO) mmWave FD and half duplex (HD) systems.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Intelligent Reflecting Surfaces Assisted Millimeter Wave MIMO Full Duplex Systems


    Contributors:


    Publication date :

    2023-06-01


    Size :

    1031951 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    User Association in Millimeter Wave Cellular Networks with Intelligent Reflecting Surfaces

    Taghavi, Ehsan Moeen / Alizadeh, Alireza / Rajatheva, Nandana et al. | IEEE | 2021



    Large Intelligent Surface for Positioning in Millimeter Wave MIMO Systems

    He, Jiguang / Wymeersch, Henk / Kong, Long et al. | IEEE | 2020



    A millimeter-wave full-duplex WDM/SCM fiber-radio access network

    Smith, G.H. / Novak, D. / Lim, C. | IEEE | 1998