Optimized Discrete Multitone Communication Over Polymer Optical Fiber

被引:8
作者
Peng, Linning [1 ]
Haese, Sylvain [1 ]
Helard, Maryline [1 ]
机构
[1] Natl Inst Appl SciensceINSA INSA Rennes, Inst Elect & Telecommun Rennes IETR, F-35700 Rennes, France
关键词
Bit-loading; Clipping; Discrete multi-tone; Effective number of bits; Light emitting diode; Nonlinearity; Peak-to-average power ratio; Polymer optical fiber; System optimization; LED NONLINEARITY; OFDM; TRANSMISSION; MODULATION; PERFORMANCE; IMPACT;
D O I
10.1364/JOCN.5.001313
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, we propose an overall optimization of discrete multitone (DMT) transmissions over polymer optical fiber (POF). The optimization is carried out from both a theoretical and experimental approach. At first, the parameters of the POF channel characteristics, resonant cavity light emitting diode (RC-LED) dynamic nonlinearity performance and analog-to-digital converter effective number of bits (ENOB), in our digital storage oscilloscope are measured. From the measured results, we investigate the channel capacity of a 50 m step-index POF system. Then the optimal DMT bandwidth is theoretically derived. We also optimize the system with different experimental setups. The optimal cyclic prefix length and RC-LED optimal working current are given. The ENOB can be improved by oversampling and averaging. The optimal oversampling factor is discussed. Furthermore, a joint DMT clipping and subcarrier number optimization is synthetically investigated. Based on the proposed approaches, an optimized DMT gigabit transmission over a real 50 m POF channel employing low-cost components is presented. Finally, a methodology for the practical design of the DMT transmission over POF is concluded.
引用
收藏
页码:1313 / 1327
页数:15
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