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    Tilt Angle Adaptation in LTE Networks with Advanced Interference Mitigation


    Partov, Bahar and Leith, Douglas J. and Razavi, Rouzbeh (2014) Tilt Angle Adaptation in LTE Networks with Advanced Interference Mitigation. In: IEEE 25th International Symposium on Personal, Indoor and Mobile Radio Communications (2014). IEEE, pp. 1959-1964. ISBN 9781479949120

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    Abstract

    In this paper we investigate the role of tilt angle adjustment in next generation LTE networks where SIMO receivers and adaptive OFDM/TDMA transmission scheduling may additionally be used to mitigate interference. We present detailed performance measurements when (i) optimal fair tilt angle adjustment is applied in combination with SIMO receivers using Linear Minimum Mean Square Error (LMMSE) detection to mitigate interference , and when (ii) tilt angle adjustment is applied in combination with proportional fair OFDM transmission scheduling which adapts the transmission rate per subcarrier (narrow-band rate allocation). We find that even when SIMO/LMMSE reception and adaptive transmission scheduling are used to mitigate interference, tilt angle adjustment still offers the potential for significant performance gains, namely increases in mean user throughput of more than 65% and improvements in the network sum-log rate of greater than 20%.

    Item Type: Book Section
    Keywords: Antenna tilt angle; LTE; Proportional fairness; LMMSE detection; Multi-user diversity;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 6956
    Identification Number: https://doi.org/10.1109/PIMRC.2014.7136492
    Depositing User: Hamilton Editor
    Date Deposited: 05 Feb 2016 17:05
    Publisher: IEEE
    Refereed: Yes
    Funders: Science Foundation Ireland (SFI)
    URI:

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