@inproceedings{a5dc8db82924447cba6f665c8f79c03f,
title = "Cost-effective bidirectional digitized radio-over-fiber systems employing sigma delta modulation",
abstract = "We propose a cost effective digitized radio-over-fiber (D-RoF) system employing a sigma delta modulation (SDM) and a bidirectional transmission technique using phase modulated downlink and intensity modulated uplink. SDM is transparent to different radio access technologies and modulation formats, and more suitable for a downlink of wireless system because a digital to analog converter (DAC) can be avoided at the base station (BS). Also, Central station and BS share the same light source by using a phase modulation for the downlink and an intensity modulation for the uplink transmission. Avoiding DACs and light sources have advantages in terms of cost reduction, power consumption, and compatibility with conventional wireless network structure. We have designed a cost effective bidirectional D-RoF system using a low pass SDM and measured the downlink and uplink transmission performance in terms of error vector magnitude, signal spectra, and constellations, which are based on the 10MHz LTE 64-QAM standard.",
keywords = "Digitized radio over fiber, Phase modulation, Re-modulation, Sigma delta modulation",
author = "Lee, {Kyung Woon} and Hyundo Jung and Park, {Jung Ho}",
note = "Publisher Copyright: {\textcopyright} 2016 SPIE.; Infrared, Millimeter-Wave, and Terahertz Technologies IV ; Conference date: 12-10-2016 Through 14-10-2016",
year = "2016",
doi = "10.1117/12.2245157",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Xi-Cheng Zhang and Masahiko Tani and Cunlin Zhang",
booktitle = "Infrared, Millimeter-Wave, and Terahertz Technologies IV",
address = "United States",
}