The authors consider corresponding coding options for the degraded PPM channel operating in the presence of dark current but no thermal noise. Coding options studied include use of non-binary Reed-Solomon (RS) codes operating in an errors-erasures mode as well as non-binary convolutional codes utilizing Viterbi maximum likelihood (ML) decoding. They also describe the performance and complexity of a novel concatenated coding scheme employing non-binary convolutional inner codes and RS outer codes. The results provide a first step in providing an assessment of coding options for the more general optical PPM channel which includes background thermal noise as well as dark current.
|Title of host publication||Proceedings - IEEE Military Communications Conference|
|Place of Publication||New York, NY, USA|
|Number of pages||7|
|State||Published - Dec 1 1984|
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