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Title: Sensitivity and asymptotic analysis of inter-cell interference against pricing for multi-antenna base stations
Authors: Liu, Ye
Lambotharan, Sangarapillai
Derakhshani, Mahsa
Nallanathan, Arumugam
Wong, Kai-Kit
Keywords: Beamforming
Convex optimization
Interference management
Uplink-downlink duality
Heterogeneous networks (HetNets)
Issue Date: 2018
Publisher: Institute of Electrical and Electronics Engineers
Citation: LIU, Y. ...et al., 2018. Sensitivity and asymptotic analysis of inter-cell interference against pricing for multi-antenna base stations. IEEE Transactions on Wireless Communications, In Press.
Abstract: We thoroughly investigate the downlink beamforming problem of a two-tier network in a reversed time-division duplex (R-TDD) system, where the interference leakage from a tier-2 base station (BS) towards nearby uplink tier-1 BSs is controlled through pricing. We show that soft interference control through the pricing mechanism does not undermine the ability to regulate interference leakage while giving flexibility to sharing the spectrum. We then analyze and demonstrate how the interference leakage is related to the variations of both the interference prices and the power budget. Moreover, we derive a closed-form expression for the interference leakage in an asymptotic case where both the charging BSs and the charged BS are equipped with large numbers of antennas, which provides further insights into the lowest possible interference leakage that can be achieved by the pricing mechanism.
Description: This is an Open Access Article. It is published by IEEE under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/
Sponsor: This work has been supported by the Engineering and Physical Science Research Council of the UK, EPSRC, under the grants EP/M015475, EP/M016145, and EP/M016005.
Version: Accepted for publication
DOI: 10.1109/TCOMM.2017.2782340
URI: https://dspace.lboro.ac.uk/2134/27805
Publisher Link: https://doi.org/10.1109/TCOMM.2017.2782340
ISSN: 1536-1276
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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