Simple 2 × 2 MIMO 60-GHz Optical/Wireless System With Extending Fiber Transmission Distance

Autor:	Ya Tang Chiang, Hou Tzu Huang, Chia-Chien Wei, Chun-Hung Ho, Chun-Ting Lin
Rok vydání:	2014
Předmět:	Engineering Radio over fiber business.industry Wavelength-division multiplexing MIMO Electronic engineering MIMO-OFDM Optical performance monitoring business Atomic and Molecular Physics and Optics Fiber-optic communication Frequency-division multiplexing Spatial multiplexing
Zdroj:	Journal of Lightwave Technology. 32:3660-3667
ISSN:	1558-2213 0733-8724
DOI:	10.1109/jlt.2014.2317695
Popis:	This paper presents a simple 2 × 2 multiple-input multiple-output (MIMO) 60-GHz radio-over-fiber system. Due to the proposed specific frequency arrangement of driving signals, each optical transmitter requires only a single-drive Mach-Zehnder modulator with 3-dB bandwidth of less than 35 GHz. This arrangement of frequencies can increase the tolerance of optical signals to dispersion-induced RF fading, thereby extending fiber transmission distance. Unfortunately, this scheme leads to signal-to-signal beating interference (SSBI), which can deteriorate system performance. Thus, we employed a 2 × 2 MIMO scheme to enhance data capacity by combining two data streams and two corresponding SSBIs prior to signal demodulation. We also developed a novel iterative equalization technique to mitigate SSBI in the MIMO system. The proposed system achieved a maximum capacity of 55.9-Gb/s in the transmission of 7-GHz orthogonal frequency division multiplexing signals over 12-km fiber and 3.5-m air transmission using a bit-loading algorithm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3afe51a9a58fe75d84441388a2d505aa https://doi.org/10.1109/jlt.2014.2317695 Zobrazit plný text záznamu