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Switchable-Rate Error Control Coding for HF-IP Systems

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Published
  • Sharadha Kariyawasam Katukolihe Ga
  • Behzad Momahed Heravi
  • Bahram Honary
  • G. Vongas
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Publication date04/2009
Host publicationIonospheric radio Systems and Techniques, 2009. (IRST 2009). The Institution of Engineering and Technology 11th International Conference on
Place of PublicationEdinburgh
PublisherIET Press
Pages132–136
Number of pages5
ISBN (print)978-1-84919-123-4
<mark>Original language</mark>English

Abstract

This paper provides analysis of high performance forward error control (FEC) coding scheme suitable for next generation HF-IP systems, which can be used as an optional scheme according to the requirements of the application. Present HF-IP systems comply with NATO STANAG 4539 Physical layer standards which use convolutional encoding for forward error protection and correction. The FEC that has been proposed in this paper is a class of quasi cyclic Low Density Parity Check (LDPC) coding scheme suitable for HFIP systems. Additive groups of Finite Fields have been used to construct short-length structured LDPC codes with 4 different rates suitable for different HF channel conditions. The codes have been simulated with ITU-R F1487 HF channel model [1] for performance analysis with different conditions and latitudes.