University of Oulu

M. Heikkilä et al., "Field Measurement for Antenna Configuration Comparison in Challenging NLOS Locations," in IEEE Transactions on Instrumentation and Measurement, vol. 67, no. 10, pp. 2476-2486, Oct. 2018. doi: 10.1109/TIM.2018.2857900

Field measurement for antenna configuration comparison in challenging NLOS locations

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Author: Heikkilä, Marjo1; Erkkilä, Juha1; Tervonen, Jouni K.2;
Organizations: 1Centria University of Applied Sciences, Vierimaatie 7, 84100 Ylivieska, Finland
2University of Oulu, Kerttu Saalasti Institute, Nivala 85500, Finland
3Nokia, Oulu, Finland
4DAEIMI, University of Cassino, Cassino, Italy
5ELEDIA@UniCAS research laboratory, Cassino, Italy
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.3 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2018
Publish Date: 2018-08-29


This paper has two main objectives. First, it describes the practical challenges of field trials and proposes a developed test method. Second, the test method is used to compare the uplink (UL) performance with different antenna technologies when user equipment (UE) does not have a line of sight (LOS) to the evolved node B. Both passive and active antenna configurations were used in the performance evaluation. Modern cellular networks have high demands for capacity, reliability, and availability. The verification of a network’s configuration and technological features is essential to guarantee network performance, and the performance of a network must be verified by the laboratory testing or field trials; such trials produce the experimental knowledge of technology features and configurations. Technological and environmental factors must also be considered before performing mobile network field testing. This paper showed that moving UE produces more reliable and repeatable results than measurements with stationary UE. Our antenna configuration comparison study revealed that in the UL direction, active antenna system beam control could significantly increase the UL capacity in non-LOS conditions.

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Series: IEEE transactions on instrumentation and measurement
ISSN: 0018-9456
ISSN-E: 1557-9662
ISSN-L: 0018-9456
Volume: 67
Issue: 10
Pages: 2476 - 2486
DOI: 10.1109/TIM.2018.2857900
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work has been performed in the framework of the CORE++ project. The authors would like to acknowledge CORE++ and IMAGE 5G research consortiums that consists of VTT Technical Research Center of Finland, University of Oulu, Centria University of Applied Sciences, Nokia, Turku University of Applied Sciences, PehuTec, Bittium, Keysight, Fairspectrum, The Finnish Defence Forces, Finnish Communication Regulatory Authority, Tekes – Finnish Funding Agency for Innovation, Pohjonen Group, Finnish Meteorological Institute and Siipotec Oy.
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