Improved Forward Error Correction Technology of RS-LDPC Cascade Code in Optical Transmission Network
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
With the continuous development of optical communication and the increase in data transmission volume, optical transmission networks (OTN) have become the focus of research on next-generation transmission networks. In the process of data transmission, errors caused by noise often occur, resulting in an increase in the bit error rate and a decrease in the performance of the optical communication system. Therefore, we use forward error correction technology (FEC) in OTN for error control to improve the transmission efficiency of signals in OTN and reduce the bit error rate.Standard FEC technology uses RS(255,239) codes. On this basis, since the performance of LDPC codes is close to the Shannon limit, we propose a method of cascading RS codes and LDPC codes.Applying this improved FEC technology to OTN, the simulation results show that the improved FEC technology has a reduced bit error rate compared with the standard FEC technology. When the bit error rate is the minus 3th power of 10, the performance is improved by about 1.7 dB.
Keywords:
Project Supported:
Research Program of Tianjin Education Commission (2017ZD15, Research on IQ imbalance estimation and compensation of high speed optical communication system based on training symbols)
Clc Number:
