Permutation coding with injections for modified PAM system

Opeyemi O. Ogunyanda, Thokozani Shongwe, Theo G. Swart

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Arriving at a good combination of coding and modulation schemes that can achieve good error correction constitutes a challenge in digital communication systems. In this work, we explore the combination of permutation coding (PC) and pulse amplitude modulation (PAM) for mitigating channel errors in the presence of background noise and jitter. Since PAM is characterised with bi-polar constellations, Euclidean distance is a good choice for predicting the performance of such coded modulation setup. In order to address certain challenges facing PCs, we therefore introduce injections in the coding system, together with a modified form of PAM system. This modification entails constraining the PAM constellations to the size of the codeword's symbol. The results obtained demonstrate the strength of the modified coded PAM system over the conventional PC coded PAM system.

Original languageEnglish
Pages (from-to)399-404
Number of pages6
JournalInternational Journal of Electronics and Telecommunications
Issue number3
Publication statusPublished - 2020


  • Injection
  • Jitter
  • Permutation codes
  • Power line communications
  • Pulse amplitude modulation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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