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25 Gbit/s QPSK Hybrid Fiber-Wireless Transmission in the W-Band (75–110 GHz) With Remote Antenna Unit for In-Building Wireless Networks
RISE ACREO AB; Technical University of Denmark.ORCID iD: 0000-0003-4906-1704
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2012 (English)In: IEEE Photonics Journal, ISSN 1097-5764, E-ISSN 1943-0655, Vol. 4, no 3, p. 691-698Article in journal (Refereed) Published
Abstract [en]

In this paper, we demonstrate a photonic up-converted 25 Gbit/s fiber-wireless quadrature phase shift-keying (QPSK) data transmission link at the W-band (75-110 GHz). By launching two free-running lasers spaced at 87.5 GHz into a standard single-mode fiber (SSMF) at the central office, a W-band radio-over-fiber (RoF) signal is generated and distributed to the remote antenna unit (RAU). One laser carries 12.5 Gbaud optical baseband QPSK data, and the other acts as a carrier frequency generating laser. The two signals are heterodyne mixed at a photodetector in the RAU, and the baseband QPSK signal is transparently up-converted to the W-band. After the wireless transmission, the received signal is first down-converted to an intermediate frequency (IF) at 13.5 GHz at an electrical balanced mixer before being sampled and converted to the digital domain. A digital-signal-processing (DSP)-based receiver is employed for offline digital down-conversion and signal demodulation. We successfully demonstrate a 25 Gbit/s QPSK wireless data transmission link over a 22.8 km SSMF plus up to 2.13 m air distance with a bit-error-rate performance below the 2 x 10(-3) forward error correction (FEC) limit. The proposed system may have the potential for the integration of the in-building wireless networks with the fiber access networks, e. g., fiber-to-the-building (FTTB).

Place, publisher, year, edition, pages
IEEE, 2012. Vol. 4, no 3, p. 691-698
Keywords [en]
Microwave photonics, radio over fiber, optical communications
National Category
Communication Systems Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-215528DOI: 10.1109/JPHOT.2012.2193563ISI: 000303893700002Scopus ID: 2-s2.0-84860861486OAI: oai:DiVA.org:kth-215528DiVA, id: diva2:1154357
Note

QC 20171107

Available from: 2017-11-02 Created: 2017-11-02 Last updated: 2017-11-07Bibliographically approved

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