Mission-critical communications conveyed over Professional Mobile Radio (PMR) are characterized by a high level of reliability, an improved coverage and group call communications. Hybrid Automatic Repeat on re-Quest (HARQ) schemes are commonly used to provide a reliable communication over multipath noisy wireless channels. They, however, generate an excessive control signaling overhead on the uplink when downlink multicast is considered and groups include many members. In this paper, we propose a simple repetition scheme without request as an alternative to HARQ for group communications. When transport blocks are retransmitted several times, a tradeoff arises between coverage and capacity on the one hand, coverage and delay on the other hand. To evaluate the performance of our scheme, we use a link layer abstraction based on the Mean Instantaneous Capacity (MIC) together with BLER vs. SNR curves in AWGN. We carefully design our repetition scheme by considering the channel characteristics and the delay constraint imposed by video codecs. We show that up to 11 dB gain in SNR is achieved when compared to a scheme without repetition. System level simulations show that cell radius can be multiplied by three in a Multicast/Broadcast Single Frequency Network (MBSFN).


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Repetition Scheme for MBSFN Based Mission-Critical Communications


    Contributors:


    Publication date :

    2018-08-01


    Size :

    380175 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    SINR Model for MBSFN Based Mission Critical Communications

    Daher, Alaa / Coupechoux, Marceau / Godlewski, Philippe et al. | IEEE | 2017


    SC-PTM or MBSFN for Mission Critical Communications?

    Daher, Alaa / Coupechoux, Marceau / Godlewski, Philippe et al. | IEEE | 2017


    MIMO-aided Irregular Repetition Schemes for Mission Critical Communications

    Zhao, Linlin / Ma, Shaodan / Yang, Guanghua et al. | IEEE | 2023


    Multicast Beamforming Capabilities of LTE MBSFN for V2X Communications

    Safiulin, Illia / Schwarz, Stefan / Rupp, Markus | IEEE | 2017


    Dynamic MBSFN Beam Area Formation in 6G Multibeam Non-Terrestrial Networks

    Rinaldi, Federica / Tropeano, Angelo / Pizzi, Sara et al. | IEEE | 2022