Orthogonal convolutional coding for the PPM optical channel

Author

Atkin, G.E. ; Corrales, H.P.

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Inst. of Technol., Chicago, IL, USA

Volume

7

Issue

4

fYear

1989

fDate

4/1/1989 12:00:00 AM

Firstpage

731

Lastpage

734

Abstract

Several coding alternatives have been analyzed to improve the performance of the ideal optical pulse position modulation (PPM) optical channel, although it has been shown that performance improvements are difficult to obtain for transmission efficiencies over 1 nat/photon. In the present work, an orthogonal convolutional coding scheme is proposed, achieving better performances than previous coding alternative, over a wide range of efficiencies. Furthermore, a concatenated coding scheme using an orthogonal convolution code as an inner code and a Reed-Solomon code as an outer code is proved to be effective, achieving operation points over 3 nat/photon, with performances that cannot be obtained with other coding schemes.<>

Keywords

encoding; optical modulation; pulse position modulation; telecommunication channels; PPM optical channel; Reed-Solomon code; concatenated coding scheme; inner code; optical pulse position modulation; orthogonal convolutional coding; outer code; Concatenated codes; Convolution; Convolutional codes; Modulation coding; Network address translation; Optical modulation; Optical pulses; Performance analysis; Pulse modulation; Reed-Solomon codes;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.19103

Filename

19103