This paper proposes a Partial Hybrid Automatic Repeat reQuest (P-HARQ) scheme where the relaying nodes select either forwarding the erroneous packets or requesting retransmission. In contrast to the conventional technique where the erroneous packets is always discarded, the packets found to have errors after decoding are interleaved, re-encoded, and forwarded if relay selects the forwarding mode. This technique is refer to as lossy forwarding. In this paper, the mode selection (either forwarding or requesting retransmission) is based on the confidence indicator (CI). Since the channels are assumed to suffer from block Rayleigh fading, the CI is calculated via online mutual information measurements, block-by- block. Results of computer simulations conducted to confirm the superiority of the proposed P-HARQ technique in terms of bit-error-rate, packet-error-rate and throughput performances in parallel multihop wireless multirelaying systems, are presented.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Lossy Forwarding Technique for Parallel Multihop-Multirelay Systems


    Contributors:


    Publication date :

    2015-09-01


    Size :

    175397 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English






    Finite-SNR DMT Analysis for Multisource Multirelay NCC Systems with Imperfect CSI

    Heidarpour, Ali Reza / Kurt, Gunes Karabulut / Uysal, Murat | IEEE | 2016


    Spatially-Coupled LDPC Coding in Threshold-Based Lossy Forwarding Scheme

    Jayakody, Dushantha Nalin K. / Rosnes, Eirik | IEEE | 2016