University of Oulu

K. Hiltunen and M. Matinmikko-Blue, "Performance of Neighboring Indoor 5G Micro Operators with Dynamic TDD," 2018 European Conference on Networks and Communications (EuCNC), Ljubljana, Slovenia, 2018, pp. 59-64. doi: 10.1109/EuCNC.2018.8443197

Performance of neighboring indoor 5G micro operators with dynamic TDD

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Author: Hiltunen, Kimmo1; Matinmikko-Blue, Marja1
Organizations: 1Centre for Wireless Communications, University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2018
Publish Date: 2019-04-04


Local small cell deployments complementing the coverage of the existing outdoor networks are vital for the future 5G networks. To make the ultra-dense indoor network deployments more cost-efficient and to promote innovation and competition in the market, new local business and spectrum authorization models are needed. One such model is the recently proposed micro operator concept with spectrum micro licensing that allows the establishment of building-specific 5G networks. While evaluating the applicability of this new concept, the impact of the inter-operator interference on the performance of the victim micro operator needs to be understood. The system simulation results shown in this paper demonstrate how the cochannel interference between two uncoordinated micro operators utilizing dynamic TDD in the 3.5 GHz band and located inside neighboring buildings can result in large throughput losses if the buildings are within a few hundred meters from each other. The main cause for these losses is the interference from the other operator’s base stations. Finally, it is shown that the performance losses are highly scenario-specific: a denser victim network deployment, or a victim network with a higher load suffers less from any external interference. Therefore, the traditional approach of defining a single separation distance for the worst case scenario does not properly model the specifics of 5G networks and can lead to overly protective requirements.

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Series: European Conference on Networks and Communications
ISSN: 2475-6490
ISSN-L: 2475-6490
ISBN: 978-1-5386-1478-5
ISBN Print: 978-1-5386-1479-2
Pages: 59 - 64
Article number: 8443197
DOI: 10.1109/EuCNC.2018.8443197
Host publication: 2018 European Conference on Networks and Communications, EuCNC 2018
Conference: European Conference on Networks and Communications
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work in the “Micro-operator concept for boosting local service delivery in 5G (uO5G)” project was funded by Business Finland.
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