Combination of a new semianalytic line code and a convolutional FEC code for free-space optical communications

Christoph Rapp

doi:10.1117/12.238419

22 April 1996 Combination of a new semianalytic line code and a convolutional FEC code for free-space optical communications

Christoph Rapp

Author Affiliations +

Proceedings Volume 2699, Free-Space Laser Communication Technologies VIII; (1996) https://doi.org/10.1117/12.238419
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

The concept of a new coding scheme is proposed, which combines the benefits of a spectral shaping line code and the error correcting capabilities of a convolutional code with Viterbi decoder. A new semi-analytic line code is introduced, which allows partly soft decision outputs from the line decoder. An additional reliability information provided from the line decoder is proposed to enhance the Viterbi decoder performance. Because the coded signal is binary, this transmission scheme is especially well suited for the binary modulation formats commonly used in free space optical communications such as OOK (on-off-keying) or PSK (phase shift keying).

Citation Download Citation

Christoph Rapp "Combination of a new semianalytic line code and a convolutional FEC code for free-space optical communications", Proc. SPIE 2699, Free-Space Laser Communication Technologies VIII, (22 April 1996); https://doi.org/10.1117/12.238419

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