eprintid: 10041353 rev_number: 31 eprint_status: archive userid: 608 dir: disk0/10/04/13/53 datestamp: 2018-01-16 13:45:33 lastmod: 2021-10-06 22:19:45 status_changed: 2018-06-05 15:55:43 type: article metadata_visibility: show creators_name: Liu, Y creators_name: Lambotharan, S creators_name: Derakhshani, M creators_name: Nallanathan, A creators_name: Wong, KK title: Sensitivity and Asymptotic Analysis of Inter-Cell Interference Against Pricing for Multi-Antenna Base Stations ispublished: pub divisions: UCL divisions: B04 divisions: C05 divisions: F46 keywords: Interference, Pricing, Downlink, Antenna arrays, Array signal processing, Uplink note: © 2018 IEEE. This work is licensed under a Creative Commons Attribution 3.0 License (http://creativecommons.org/licenses/by/3.0/). abstract: We thoroughly investigate the downlink beamforming problem of a two-tier network in a reversed time-division duplex system, where the interference leakage from a tier-2 base station (BS) toward 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. Then, we 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 a large number of antennas, which provides further insights into the lowest possible interference leakage that can be achieved by the pricing mechanism. date: 2018-04 date_type: published official_url: http://dx.doi.org/10.1109/TCOMM.2017.2782340 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green article_type_text: Journal Article verified: verified_manual elements_id: 1522969 doi: 10.1109/TCOMM.2017.2782340 language_elements: English lyricists_name: Wong, Kai-Kit lyricists_id: KWONG98 actors_name: Flynn, Bernadette actors_id: BFFLY94 actors_role: owner full_text_status: public publication: IEEE Transactions on Communications volume: 66 number: 4 pagerange: 1758-1771 issn: 0090-6778 citation: Liu, Y; Lambotharan, S; Derakhshani, M; Nallanathan, A; Wong, KK; (2018) Sensitivity and Asymptotic Analysis of Inter-Cell Interference Against Pricing for Multi-Antenna Base Stations. IEEE Transactions on Communications , 66 (4) pp. 1758-1771. 10.1109/TCOMM.2017.2782340 <https://doi.org/10.1109/TCOMM.2017.2782340>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10041353/1/Wong_Sensitivity%20and%20Asymptotic%20Analysis%20of%20Inter-cell%20Interference%20against%20Pricing%20for%20Multi-Antenna%20Base%20Stations_VoR.pdf.pdf