A Turbo-Coded Modulation Scheme for Deep-Space Optical Communications 


Vol. 35,  No. 2, pp. 139-147, Feb.  2010


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  Abstract

A novel turbo coded modulation scheme, called turbo-APPM, for deep space optical communications is constructed. The constructed turbo-APPM is a serial concatenations of turbo codes, an accumulator and a pulse position modulation (PPM), where turbo codes act as an outer code while the accumulator and the PPM act together as an inner code. The generator polynomial and the puncturing rule for generating turbo codes are chosen to show the low bit error rate. At the receiver, the joint decoding is performed by exchanging soft information iteratively between the inner decoder and the outer decoder. In the outer decoder, a local iterative decoding for turbo codes is conducted before transferring soft information to the inner decoder. Poisson distribution is used to model the deep space optical channel. It is shown by simulations that the constructed turbo-APPM provides coding gains over all previously proposed schemes such as LDPC-APPM, RS-PPM and SCPPM.

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  Cite this article

[IEEE Style]

S. Oh, I. Hwang, J. W. Lee, "A Turbo-Coded Modulation Scheme for Deep-Space Optical Communications," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 2, pp. 139-147, 2010. DOI: .

[ACM Style]

Sangmok Oh, Inho Hwang, and Jeong Woo Lee. 2010. A Turbo-Coded Modulation Scheme for Deep-Space Optical Communications. The Journal of Korean Institute of Communications and Information Sciences, 35, 2, (2010), 139-147. DOI: .

[KICS Style]

Sangmok Oh, Inho Hwang, Jeong Woo Lee, "A Turbo-Coded Modulation Scheme for Deep-Space Optical Communications," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 2, pp. 139-147, 2. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880