標題: | Simple 2 x 2 MIMO 60-GHz Optical/Wireless System With Extending Fiber Transmission Distance |
作者: | Huang, Hou-Tzu Lin, Chun-Ting Chiang, Ya-Tang Wei, Chia-Chien Ho, Chun-Hung 光電系統研究所 Institute of Photonic System |
關鍵字: | Multiple-input multiple-output (MIMO);optical fiber communication;signal processing algorithms;wireless communication |
公開日期: | 15-十月-2014 |
摘要: | This paper presents a simple 2 x 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 x 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. |
URI: | http://dx.doi.org/10.1109/JLT.2014.2317695 http://hdl.handle.net/11536/124143 |
ISSN: | 0733-8724 |
DOI: | 10.1109/JLT.2014.2317695 |
期刊: | JOURNAL OF LIGHTWAVE TECHNOLOGY |
Volume: | 32 |
Issue: | 20 |
起始頁: | 3660 |
結束頁: | 3667 |
顯示於類別: | 期刊論文 |