Beam steering application for W-band data links with moving targets in 5G wireless networks

Alvaro Morales, Sebastian Rodriguez, Omar Gallardo, Juan Jose Vegas Olmos, Idelfonso Tafur Monroy

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

Ubiquitous broadband Internet access is one of the major goals of the next generation of wireless communications. However, there are still some locations where this is difficult to achieve. This is the case on moving vehicles and, particularly, on trains. Among the possible solutions to this problem, RoF (Radio-over-Fiber) architectures have been proposed as low-latency, cost-effective candidates. Two elements are introduced to extend the RoF approach. First, the carrier frequency is raised into the W-band (75–110 GHz) to increase the available capacity. Second, a mechanical beam-steering solution based on a Stewart platform is adopted for the transmitter antenna to allow it to follow a moving receiver along a known path, thereby enhancing the coverage area. The performance of a system transmitting a 2.5 Gbit/s non-return-to-zero signal generated by photonic up-conversion over a wireless link is evaluated in terms of real-time BER (Bit Error Rate) measurements. The receiver is situated in different positions, and the orientation of the transmitter is changed accordingly. Values below the forward error correction limit for 7% overhead are obtained over a range of 60 cm around a center point situated 2 m away from the transmitter.
OriginalsprogEngelsk
TidsskriftJournal of Communications and Information Networks
Vol/bind2
Udgave nummer2
Sider (fra-til)91-100
Antal sider10
ISSN2096-1081
DOI
StatusUdgivet - 2017
Udgivet eksterntJa

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