Open AccessOptical and millimeter-wave radio seamless MIMO transmission based on a radio over fiber technology
Author(s) -
Atsushi Kanno,
Toshiaki Kuri,
Iwao Hosako,
Tetsuya Kawanishi,
Yuki Yoshida,
Yoshio Yasumura,
Kenichi Kitayama
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.029395
Subject(s) - radio over fiber , demodulation , digital signal processing , radio frequency , electronic engineering , computer science , mimo , transmission (telecommunications) , digital radio , optics , physics , telecommunications , beamforming , channel (broadcasting) , engineering
Multi-input multi-output (MIMO) transmission of two millimeter-wave radio signals seamlessly converted from polarization-division-multiplexed quadrature-phase-shift-keying optical signals is successfully demonstrated, where a radio access unit basically consisting of only optical-to-electrical converters and a radio receiver performs total signal equalization of both the optical and the radio paths and demodulation with digital signal processing (DSP). Orthogonally polarized optical components that are directly converted to two-channel radio components can be demultiplexed and demodulated with high-speed DSP as in optical digital coherent detection. 20-Gbaud optical and radio seamless MIMO transmission provides a total capacity of 74.4 Gb/s with a forward error correction overhead of 7%.