Forward error correction loading for power budget improvement of orthogonal frequency division multiplexing access-passive optical network

Rong Hu; Qi Yang; Tao GuiXinquan ZhangXiao XiaoMing LuoShanhong You

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Forward error correction loading for power budget improvement of orthogonal frequency division multiplexing access-passive optical network

机译：Forward error correction loading for power budget improvement of orthogonal frequency division multiplexing access-passive optical network

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摘要

We propose and experimentally demonstrate a novel loading scheme to improve the maximum system power budget for orthogonal frequency division multiplexing access-passive optical network (OFDMA-PON). For the downstream traffic, optical network units (ONUs) with asymmetric distribution fiber lengths are paired together, and information for the paired ONUs is loaded into the same OFDM signal by forward error correction loading combined with bit and power loading scheme. Power budgets of ONUs with long distribution fiber lengths can be improved at the cost of the power budget degradation of ONUs with short distribution fiber lengths, while maintaining the data rates for both ONUs. Besides, the total number of subcarriers used in downstream OFDM signal remains unchanged. A proof-of-concept experiment is performed to demonstrate the feasibility of the proposed scheme. A maximum of 80 km transmission and a 1:128 split ratio is achieved by the scheme, which improves the maximum system power budget by ～4 dB than traditional methods.

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来源
《Optical Engineering》 |2013年第2期|025010-1-025010-5|共5页
作者
Rong Hu; Qi Yang; Tao GuiXinquan ZhangXiao XiaoMing LuoShanhong You;
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作者单位

Wuhan Research Institute of Posts & Telecommunications, State Key Laboratory of Optical Communication Technologies and Networks, Wuhan 430074, China;

Jinan University, Institute of Photonics Technology, Guangzhou, China;

Soochow University, School of Electronic & Information Engineering, Suzhou, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;
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Forward error correction loading for power budget improvement of orthogonal frequency division multiplexing access-passive optical network

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