Recent vehicular communications problems entail various aspects, such as rapidly changing topologies and large number of users. We consider massive uncoordinated multiway relay networks (mu-mRN) that can serve a massive number of users expecting to fully exchange information among them via a common multiway relay. Relay vehicular networks system is one of potential applications of the mu-mRN. In this paper, we are interested in improving normalized throughput T of the network using multiuser detection (MUD) capability of K > 1 based on the graph-based random access to flexibly adapt the topology changes. First, we present a network capacity bound of the mu-mRN with general K to investigate the theoretical limit of the networks. Then, we search for many optimal and practical degree distributions for each theoretical bound. Second, we aim to improve the normalized throughput by 10× from the maximum normalized throughput of conventional systems. To achieve the goal, we propose the mu-mRN applying doubly irregular coded slotted ALOHA. We also propose an optimal practical encoding of the mu-mRN to closely approach the target with finite number of users.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Vehicular massive multiway relay networks applying graph-based random access


    Beteiligte:


    Erscheinungsdatum :

    2015-12-01


    Format / Umfang :

    819113 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Deep Unfolding Scheme for Grant-Free Massive-Access Vehicular Networks

    Dang, Xiaobing / Xiang, Wei / Yuan, Lei et al. | IEEE | 2023


    Achievable Rates of the MIMO Multiway Distributed-Relay Channel with Full Data Exchange

    Zhao, Xiang / Zhang, Jianwen / Zhang, Ying Jun et al. | IEEE | 2017


    Graph-Based Distributed Control in Vehicular Communications Networks

    Zhao, Jikui / Dong, Yudi / Wang, Huaxia | IEEE | 2023


    Internet access in vehicular networks

    Xu, Wenchao / Zhou, Haibo / Shen, Xuemin | TIBKAT | 2021


    Multiway dumping Automatic moving carrier

    Europäisches Patentamt | 2016

    Freier Zugriff