scholarly journals Channel Coding in Optical Communication Systems

2016 ◽  
Vol 4 (2) ◽  
pp. 1-5
Author(s):  
Viktor Durcek ◽  
◽  
Michal Kuba ◽  
Milan Dado
Keyword(s):  
Error Correction ◽  
Optical Networks ◽  
Optical Communication ◽  
Channel Coding ◽  
Communication Systems ◽  
High Speed ◽  
Forward Error Correction ◽  
Error Correcting Codes ◽  
Optical Communication Systems ◽  
Forward Error

In this paper, an overview of various types of error-correcting codes is present. Three generations of forward error correction methods used in optical communication systems are listed and described. Forward error correction schemes proposed for use in future high-speed optical networks can be found in the third generation of codes.

scholarly journals A Generic Reconfigurable Mixed Time and Frequency Domain QAM Transmitter with Forward Error Correction

2017 ◽  
Vol 6 (2) ◽  
pp. 80 ◽  
Author(s):  
Shalina Percy Delicia Figuli ◽  
Peter Figuli ◽  
Alberto Sonnino ◽  
Juergen Becker
Keyword(s):  
Error Correction ◽  
Frequency Domain ◽  
Communication Systems ◽  
High Speed ◽  
Forward Error Correction ◽  
Digital Signal ◽  
Field Programmable ◽  
Hard Limit ◽  
Programmable Gate Arrays ◽  
Forward Error

In the past three decades, Field Programmable Gate Arrays (FPGAs) have emerged to be the backbone of digital signal processing, especially in high-speed communication systems. However, today, these devices are clocked below 1GHz and improvement in performance stays a big challenge on all abstraction layers, right from system architecture down to physical technology. Far and wide, myriad number of researches are done on methodologies and techniques which can deliver higher throughput with lower operating frequencies. Towards this projected objective, in this paper an efficient modulation technique like Quadrature Amplitude Modulation (QAM) along with mixed time and frequency domain approach and Forward Error Correction (FEC) technique have been utilized to employ a generic scalable FPGA based QAM transmitter with filter parallelization being executed in mixed domain. The system developed in this paper achieves an effective throughput of 12.8Gb/s for 256-QAM with 16 parallel inputs having an operating frequency of 201.25MHz, while a 18.7Gb/s effective throughput is realized with 32 parallel inputs at 146MHz. Thereby, it paves down a promising methodology for applications where having higher clock frequencies is a hard limit.

Recent Advances in Ultra-High-Speed Waveguide Photodiodes for Optical Communication Systems

2009 ◽  
Vol E92-C (7) ◽  
pp. 922-928 ◽  
Author(s):  
Kikuo MAKITA ◽  
Kazuhiro SHIBA ◽  
Takeshi NAKATA ◽  
Emiko MIZUKI ◽  
Sawaki WATANABE
Keyword(s):  
Optical Communication ◽  
Communication Systems ◽  
High Speed ◽  
Recent Advances ◽  
Ultra High Speed ◽  
Optical Communication Systems
Sign in / Sign up

Export Citation Format

Share Document