Title :
Research on Adaptive Modulation Algorithm of Multimode Fiber Communication System Using Coherent Optical OFDM
Author :
Renwei, Wan ; Zhengrong, Tong ; Xiaofang, Xie ; Xiufeng, Yang ; Yuming, Xue
Author_Institution :
Tianjin Key Lab. of Film Electron. & Commun. Devices, Tianjin Univ. of Technol., Tianjin, China
Abstract :
Coherent Optical OFDM (CO-OFDM) technology can take full advantage of the high frequency band-pass regions of the multimode fiber, and carry high-speed and high capacity communication. However, the deep fading in high frequency band pass region of the multimode fiber will affect the system performance. Adaptive Modulation Algorithm was studied. The authors proposed an algorithm using threshold allocation of optical signal to noise ratio (OSNR), and introduced the CO-OFDM multimode fiber communication systems based on adaptive modulation (AM).The experimental results show that AM-CO-OFDM multimode fiber communication systems reduces 2dB OSNR requirement than that without AM technology in 21.4Gb/s CO-OFDM signal transmission over 200km of multimode fiber.
Keywords :
OFDM modulation; adaptive modulation; fading; optical fibre communication; adaptive modulation algorithm; band pass region; bit rate 21.4 Gbit/s; coherent optical OFDM; deep fading; distance 200 km; multimode fiber communication system; optical signal to noise ratio; Adaptive optics; Adaptive systems; Fading; High speed optical techniques; OFDM modulation; Optical fiber communication; Optical modulation; Optical noise; Signal to noise ratio; System performance; adaptive modulation; coherent optical OFDM; multimode fiber; optical fiber communication;
Conference_Titel :
Communications and Mobile Computing (CMC), 2010 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-6327-5
Electronic_ISBN :
978-1-4244-6328-2
DOI :
10.1109/CMC.2010.316
