SNR threshold for distributed antenna systems in Cloud Radio Access Networks

Ying He, Eryk Dutkiewicz, Gengfa Fang, Markus Dominik Mueck

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    2 Citations (Scopus)


    A distributed antenna system (DAS) architecture is a key enabler for Cloud Radio Access Networks (CRAN) where geographically separated base stations are connected to a centralized processing and decision making unit. Many schemes have been proposed to leverage Fractional Frequency Reuse (FFR) and co-ordinated joint transmission between base stations to improve cell-edge performance for static network deployments. In this paper, we investigate dynamic decision making that whether co-ordinated joint transmission should be selected in the downlink of a FFR-aided DAS. We derive the transmitting Signal-to-Noise-Ratio (SNR) threshold that co-ordinated joint transmission can provide better performance if the transmitting SNR is below this threshold. We simulated a three-cell cluster layout with FFR and the numerical results agree with our analytical results. We show that the transmitting SNR threshold is critical in the FFR-aided DAS analysis and can be used as a guide in the CRAN network planning and the evaluation of DAS performance.

    Original languageEnglish
    Title of host publication2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings
    Place of PublicationPiscataway, USA
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Number of pages5
    ISBN (Electronic)9781479980918
    Publication statusPublished - 2015
    Event82nd IEEE Vehicular Technology Conference, VTC Fall 2015 - Boston, United States
    Duration: 6 Sept 20159 Sept 2015


    Other82nd IEEE Vehicular Technology Conference, VTC Fall 2015
    Country/TerritoryUnited States


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