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RF-MIMO for smart metering communication under harsh conditions

: Koschel, L.; Mahler, K.; Felbecker, R.; Frey, M.


Institute of Electrical and Electronics Engineers -IEEE-; Institute of Electrical and Electronics Engineers -IEEE-, Malaysia Section:
IEEE Conference on Wireless Sensors, ICWiSe 2014 : October, 26-28 2014, Subang, Malaysia
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-5593-0 (Print)
ISBN: 978-1-4799-5594-7
Conference on Wireless Sensors (ICWiSe) <2014, Subang/Malaysia>
Fraunhofer HHI ()

The utilities that want to remotely access their smart meters face a serious problem when it comes to the basement-to-dwelling or basement-to-concentrator barrier. In this paper, we design and implement a wireless communication system able to provide communication to the smart meters mounted in basements. Firstly, we analyze measurements of wireless channels in 100-1200 MHz frequency range, including 2×2 MIMO configuration. The measurements base on different propagation environments typical for big European cities. After the channel characterization, we propose a radio-frequency multiple-input multiple-output (RF-MIMO) extension for small-scale-fading compensation. Moreover, we study several RF-MIMO algorithms for spatial diversity gain. Subsequently, we identify the most suitable frequency bands-169 and 869 MHz, and calculate a link budget for coverage estimation. Finally, we implement a proof-of-concept prototype.