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:	http://ieeexplore.ieee.org/
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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