Czaputa, Martin, Javornik, Tomaz, Leitgeb, Erich, Kandus, Gorazd and Ghassemlooy, Zabih (2011) Investigation of punctured LDPC codes and time-diversity on free-space optical links. In: 11th international conference on Telecommunications - ConTEL2011, 15-17 June 2011, Graz University of Technology, Graz , Austria..
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Abstract
In this paper, we analyze the behavior of DVB-S2 un-punctured/punctured low-density parity-check (LDPC) coded on-off-keying (OOK) under atmospheric turbulence conditions by utilizing time diversity. A performance characterization between these schemes is evaluated, where punctured LDPC code provides a penalty of around 0.1 to 0.2 dB against unpunctured LDPC codes but still provides a coding gain of several dB against uncoded OOK. The combination of channel coding and a bit interleaver results in performance improvements in turbulence conditions. For example, such a system can achieve a coding gain of 16.7 dB in moderate turbulence conditions compared to uncoded OOK.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | J900 Others in Technology |
| Department: | Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering |
| Related URLs: | |
| Depositing User: | EPrint Services |
| Date Deposited: | 03 Aug 2011 15:22 |
| Last Modified: | 17 Dec 2023 11:36 |
| URI: | https://nrl.northumbria.ac.uk/id/eprint/180 |
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