Machine-to-Machine (M2M) communications are expected to support extremely harsh requirements on both latency and reliability, which is characterized by the ultra-reliable, low-latency coding (uRLLC) technology in physical layer. In this paper, motivated by the recent development on the finite-blocklength information theory, we propose an ultra-reliable short blocklength analog fountain code (AFC) for M2M communications. First, we use the extrinsic information transfer (EXIT) chart to analyze the AFC compressive sensing belief propagation (CS-BP) decoding algorithm, by tracking the mutual information of AFC CS-BP decoding process, which related to the channel dispersion for the short blocklength AFC. Then, based on the EXIT chart analysis, we propose a Weight-set optimization progressive edge-growth (WO-PEG) encoding algorithm for the short blocklength AFC. Simulation results show that the proposed WO-PEG AFC scheme can effectively improve block error rate (BLER) in the short blocklength regime.


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    Titel :

    Analysis and Design of Ultra-Reliable Short Blocklength Analog Fountain Codes


    Beteiligte:
    Zhang, Ke (Autor:in) / Jiao, Jian (Autor:in) / Huang, Zixuan (Autor:in) / Feng, Bowen (Autor:in) / Wu, Shaohua (Autor:in) / Cao, Bin (Autor:in) / Zhang, Qinyu (Autor:in)


    Erscheinungsdatum :

    2018-08-01


    Format / Umfang :

    354708 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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