Acquiring accurate channel state information (CSI) in finite blocklength (FBL) ultra-reliable and low-latency communications (URLLC) with millimetre wave (mmWave) massive multiple-input multiple-output (MIMO) necessitates a significant pilot overhead. To overcome this challenge, differential modulation (DM) is a promising solution for eliminating the costly pilot overheads in FBL and avoiding pilot contamination in mmWave massive MIMO systems. In this paper, we propose a combination of DM and hierarchical codebook-based beam training schemes as a feasible way to enable FBL URLLC with mmWave massive MIMO. Additionally, we derive the block error rate (BLER) of the joint DM and hierarchical codebook-based beam training scheme in the FBL regime by employing non-asymptotic information-theoretic bounds. The simulation results verify the accuracy of the analysis and show that DM does offer an advantage over the pilot-assisted coherent schemes under FBL with mmWave massive MIMO.


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    Title :

    Differential Modulation and Beamforming for Finite Blocklength URLLC with mm Wave massive MIMO


    Contributors:


    Publication date :

    2024-06-24


    Size :

    1023366 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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