Title :
What is the optimal symbol rate for long-haul transmission?
Author :
Shieh, William ; Chen, Xi ; Li, An ; Gao, Guanjun ; Al Amin, Abdullah
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Melbourne, VIC, Australia
Abstract :
In this paper, we first provide analysis and discussion on the optimal symbol rate for long-haul transmission. In particular, the optimal subband bandwidth in a multi-band DFT-Spread OFDM (MB-DFT-S OFDM) system is studied. We then carry out numerical simulation of 107 Gb/s MB-DFT-S OFDM systems and find the optimal subband bandwidth is 3.5 GHz for dispersion un-compensated systems. We finally show experimental demonstration of the nonlinearity improvement of DFT-S-OFDM over conventional OFDM systems.
Keywords :
OFDM modulation; discrete Fourier transforms; nonlinear optics; optical communication equipment; optical fibre communication; optical fibre dispersion; OFDM system; bandwidth 3.5 GHz; bit rate 107 Gbit/s; dispersion uncompensated systems; long-haul transmission; multiband DFT-spread OFDM; nonlinearity improvement; numerical simulation; optimal subband bandwidth; optimal symbol rate; Abstracts; Bandwidth; Decision support systems; OFDM; Fiber nonlinear effects; Fiber optics communications; OFDM; coherent detection;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
