A brief look at Forward Error Correcting codes

2011 ◽  
Author(s):  
Xiaoxue Yang ◽  
Yue Wang
Keyword(s):  
Error Correcting Codes ◽  
Forward Error

scholarly journals COMPARISON OF THE PROBABILISTIC CHARACTERISTICS OF 8-BIT CODES WITH FORWARD ERROR CORRECTION

Telecom IT ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 21-30
Author(s):  
S. Vladimirov
Keyword(s):  
Error Correction ◽  
Forward Error Correction ◽  
Communication Channels ◽  
Error Correcting Codes ◽  
Transmission System ◽  
Practical Relevance ◽  
Research Subject ◽  
Application Layer ◽  
Characteristics Method ◽  
Forward Error

Research subject. The article presents the results of comparing different 8-bit error-correcting codes by their probabilistic characteristics. Method. Simulation was performed to determine the probabilistic characteristics of 8-bit error-correcting codes. The principles of their coding and decoding are considered. Core results. The probabilistic characteristics of 8-bit error-correcting codes are identified and presented. Recommendations for their application are developed depending on the structure of the using transmission system. Practical relevance. The application of the considered codes for the construction of transmission systems on devices with limited computing resources is proposed. The applicability of these codes in the development of application layer byte protocols that require the use of forward error correction mechanisms in communication channels is noted.

Multimedia forward error correcting codes for wirelessLAN

2003 ◽  
Vol 58 (3-4) ◽  
pp. 448-463
Author(s):  
Benoît Parrein ◽  
Nicolas Normand ◽  
Jeanpierre Guédon
Keyword(s):  
Error Correcting Codes ◽  
Forward Error

Forward error correcting codes in synchronous fiber optic transmission systems

1997 ◽  
Vol 15 (1) ◽  
pp. 43-52 ◽  
Author(s):  
M. Tomizawa ◽  
Y. Yamabayshi ◽  
K. Murata ◽  
T. Ono ◽  
Y. Kobayashi ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Error Correcting Codes ◽  
Transmission Systems ◽  
Forward Error

scholarly journals DESIGN OF TCM DECODERS USING OPTIMIZED VITERBI DECODER

2015 ◽  
pp. 233-237
Author(s):  
D. KOKILANAYAKI
Keyword(s):  
Power Consumption ◽  
Viterbi Algorithm ◽  
Digital Communication ◽  
Error Correcting Codes ◽  
Viterbi Decoder ◽  
Hardware Complexity ◽  
Decoding Algorithm ◽  
Clock Speed ◽  
Exponential Increase ◽  
Forward Error

The use of forward error correcting codes in the digital communication is used to overcome the data corruptions. Although widely-used, the most popular communications decoding algorithm, the Viterbi algorithm, requires an exponential increase in hardware complexity to achieve greater decode accuracy. The Viterbi decoder that forms the dominant module of TCM decoders are responsible for the overall power consumption. We have analyzed the original T-algorithm with that of the precomputation architecture’s of the T-algorithm. The T-algorithm reduces the complexity of the original viterbi algorithm and reduces the power consumption by 70%.This can be done with the reduction in the negligible clock speed.

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.

Eurofix: Test Results of a Cost-Effective DGNSS Augmentation System

1997 ◽  
Vol 50 (2) ◽  
pp. 209-223 ◽  
Author(s):  
G. W. A. Offermans ◽  
A. W. S. Helwig ◽  
D. van Willigen
Keyword(s):  
Navigation System ◽  
Forward Error Correction ◽  
Low Cost ◽  
Real Life ◽  
Cost Effective ◽  
Error Correcting Codes ◽  
Integrated Navigation ◽  
Large Area ◽  
Integrated Navigation System ◽  
Forward Error

Eurofix is an integrated navigation system, which combines Differential GNSS and Loran-C. The Loran-C system is used to provide differential corrections for the GNSS pseudo-range measurements and integrity information by additionally modulating the transmitted signals. This modulation, however, is not allowed to degrade normal Loran-C operations. As data transmission is hindered by the aggressive Loran-C signal environment, special modulation patterns and Forward Error Correcting codes are designed to fulfil the requirements. Compared to other DGNSS services, Eurofix has a number of advantages: It covers a large area, its implementation in an already existing infrastructure is basically low-cost, it offers enhanced datalink availability in urban and mountainous environment, it has wide-area capabilities and, finally, it provides a free backup navigation system in case either Loran-C or GPS fails.The paper describes the Eurofix system, focusing on the Loran-C data channel. A modified RTCM type-9 message format is used with special Forward Error Correction. At Delft University a real-life test set-up has been built to evaluate the Eurofix performance for different scenarios. The results on datalink and DGNSS performance are presented. It is shown that metre-level DGNSS performance is achievable with low bit rate data channels, using Loran-C stations at up to 1000 km distance.

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