Wireless channels are defined by the presence and motion of objects between and around the communicating stations. As parts of the environment change, so do the channels between stations that are nearby. While the impact of environmental changes on individual channals has been studies extensively, the spatial autocorrelation across multiple channels, which we will call spatial cross-correlation, has received little attention. These effects are important whenever protocols use multiple channels in real time, such as in multi-hop networks. This paper studies the trade-offs between different ways of simulating spatial channel cross-correlation in the context of vehicular networks. We compare independent stochastic, locally cross-correlated stochastic, and explicitly geometric models in terms of both their complexity and the network-level performance they induce. Our results generally favor the geometric approach. Geometric models have higher precision and lower complexity than cross-correlated stochastic models, although collecting the detailed input needed for geometric models can be expensive. As a result, we propose a hybrid approach that combines geometric and stochastic approaches, depending on whether the impact of physical changes has a major or more minor impact on the channels.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Simulating spatial cross-correlation in vehicular networks


    Beteiligte:
    Wang, Xiaohui (Autor:in) / Anderson, Eric (Autor:in) / Steenkiste, Peter (Autor:in) / Bai, Fan (Autor:in)


    Erscheinungsdatum :

    01.12.2014


    Format / Umfang :

    248026 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Simulating vehicular collisions

    Reed, W.S. / Keskin, A.T. / Sing, C.J. | Tema Archiv | 1985


    Cross Network Slicing in Vehicular Networks

    Ibraheem, Amani | Springer Verlag | 2021


    Cross-layer location verification enhancement in vehicular networks

    Gongjun Yan, / Olariu, S / Weigle, M C | IEEE | 2010


    Vehicular Networks

    Benarous, Leila / Bitam, Salim / Mellouk, Abdelhamid | Wiley | 2022


    Vehicular Networks

    Pujolle, Guy | Wiley | 2020