Al-Nedawe, Basman, Buhafa, Adel M, Sibley, Martin J.N. and Mather, Peter (2013) Optimum reed solomon code using with dicode pulse position modulation system. In: Proceedings of Computing and Engineering Annual Researchers' Conference 2013 : CEARC'13. University of Huddersfield, Huddersfield, pp. 25-30. ISBN 9781862181212

Dicode Pulse Position Modulation (DiPPM) has been proposed as a more advantageous format than
digital PPM with one of its main advantages being that the line rate is twice that of the original data rate, a significant reduction in speed compared to digital PPM. This paper describes the performance of a DiPPM system using a Reed Solomon (RS) code to enhance the sensitivity. Theoretical results are presented at an original data rate of 1Gbit/s, in terms of transmission efficiency, bandwidth expansion, and number of photons per pulse. According to simulation results the Reed Solomon error correction coded system offers an improvement over uncoded DiPPM of 5.12dB, when operating at the optimum code rate of approximately 3/4 and a codeword length of 25 symbols.

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