Direct-Detection PDM-OFDM RoF System for 60-GHz 2×2 MIMO Wireless Transmission Without Polarization Tracking

Hou Tzu Huang, Chung Shin Sun, Chun-Ting Lin*, Chia Chien Wei, Wei Siang Zeng, Hsi Yu Chang, Boris Shih, Anthony Ng'Oma

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

This work experimentally demonstrates a 60-GHz direct-detection polarization division multiplexing and orthogonal frequency division multiplexing (PDM-OFDM) system that does not require polarization tracking. The frequency offset of un-modulated optical carriers and a novel training symbol design enable the estimation of optical polarization mixing and wireless multi-input-multi-output (MIMO) channels for signal demodulation. We also adopted an empty subcarrier to mediate noise enhancement. Simulation and experiment results both demonstrate the feasibility of this approach. With pre-compensation, we achieved a BER of 1 × 10-3 under all polarization states over 10-km fiber and 3-m wireless MIMO transmission. The maximal allowable transmission data rate of up to 52 Gb at the worst case of states of polarization can be achieved.

Original languageEnglish
Pages (from-to)3739-3745
Number of pages7
JournalJournal of Lightwave Technology
Volume36
Issue number17
DOIs
StatePublished - 1 Sep 2018

Keywords

  • Millimeter wave communication
  • multi-input-multi-output (MIMO)
  • OFDM modulation
  • optical fiber communication
  • polarization division multiplexing

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