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Search: WFRF:(Darko S) > (2011-2014)

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1.
  • Pang, Xiaodan, 1986-, et al. (author)
  • 100 Gbit/s hybrid optical fiber-wireless link in the W-band (75–110 GHz)
  • 2011
  • In: Optics Express. - : Optical Society of America. - 1094-4087. ; 19:25, s. 24944-24949
  • Journal article (peer-reviewed)abstract
    • We experimentally demonstrate an 100 Gbit/s hybrid optical fiber-wireless link by employing photonic heterodyning up-conversion of optical 12.5 Gbaud polarization multiplexed 16-QAM baseband signal with two free running lasers. Bit-error-rate performance below the FEC limit is successfully achieved for air transmission distances up to 120 cm.
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2.
  • Pang, Xiaodan, 1986-, et al. (author)
  • 25 Gbit/s QPSK Hybrid Fiber-Wireless Transmission in the W-Band (75–110 GHz) With Remote Antenna Unit for In-Building Wireless Networks
  • 2012
  • In: IEEE Photonics Journal. - : IEEE. - 1943-0655. ; 4:3, s. 691-698
  • Journal article (peer-reviewed)abstract
    • 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).
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