Forward error correction techniques

Sab, Omar Ait

doi:10.1109/ofc.2003.1248289

Cited by 4 publications

(2 citation statements)

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“…In specific, FEC codes are good examples to consider in this study. Recall that in FEC, redundant information is transmitted along with the data that can be exploited by the receiver to correct errors incurred during transmission [7]- [9]. Since new bits are added to the original bit stream, which are referred to as overhead, the bit-rate of the data will increase after the FEC encoder.…”

Section: Forward Error Correcting Codesmentioning

confidence: 99%

Upgrading Legacy Long-Haul WDM Systems Through Unbalancing the Proportion of 1s and 0s in the Transmitted Data

Nahas

Blow

2016

IETE Journal of Research

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We present experimental results for wavelength-division multiplexed (WDM) transmission performance using unbalanced proportions of 1s and 0s in pseudo-random bit sequence (PRBS) data. This investigation simulates the effect of local, in time, data unbalancing which occurs in some coding systems such as forward error correction when extra bits are added to the WDM data stream. We show that such local unbalancing, which would practically give a time-dependent error-rate, can be employed to improve the legacy long-haul WDM system performance if the system is allowed to operate in the nonlinear power region. We use a recirculating loop to simulate a long-haul fibre system.

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Section: Forward Error Correcting Codesmentioning

confidence: 99%

Upgrading Legacy Long-Haul WDM Systems Through Unbalancing the Proportion of 1s and 0s in the Transmitted Data

Nahas

Blow

2016

IETE Journal of Research

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“…Currently, there are two kinds of FEC techniques, namely block codes and convolutional codes [1,3,4]. The encoder for a block code divides the information sequence into message blocks of "k" information bits each.…”

Section: Forward Error Correction (Fec) Techniquesmentioning

confidence: 99%

Comparative Performance Analysis of Forward Error Correction Techniques Used in Wireless Communications

Çalhan

Çeken

Ertürk

2007

2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07)

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High bit error rates of the wireless communication medium require employing forward error correction methods on the data transferred, where usually convolutional coding techniques are utilized. As a result of their strong mathematical structure these codes are superior to their counterparts in especially real-time applications. The main decoding strategy for convolutional codes is based on the Viterbi algorithm. Common use of convolutional codes has boosted the development of different decoding schemes. These studies resulted in a new error correcting method called Turbo code. In this research work, Viterbi decoding algorithm that is the basis for Forward Error Correction (FEC) techniques, and Log-MAP and SOVA Turbo decoding algorithms are studied using MATLAB software. An example image transfer application has also been realized for comparative performance analysis of these techniques. The simulation results obtained show that the Log-MAP decoding algorithm achieves up to 100 times better BER performance especially for increasing SNR values than that of Viterbi algorithm.

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A highly effective technique for setting the power preemphasis in WDM optical systems

Ciaramella

Giorgi

D’Errico

et al. 2006

J. Lightwave Technol.

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Forward error correction techniques

Cited by 4 publications

References 0 publications

Upgrading Legacy Long-Haul WDM Systems Through Unbalancing the Proportion of 1s and 0s in the Transmitted Data

Upgrading Legacy Long-Haul WDM Systems Through Unbalancing the Proportion of 1s and 0s in the Transmitted Data

Comparative Performance Analysis of Forward Error Correction Techniques Used in Wireless Communications

A highly effective technique for setting the power preemphasis in WDM optical systems

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