Abstract

Network coding in communication systems is increasingly popular and growing because of its ability to reduce delay and increase throughput. At the same time, OFDM (Orthogonal Frequency Division Multiplexing) modulation technique is also increasingly popular and growing with the advantages of efficient use of bandwidth spectrum and resistance to ISI (Inter Symbol Interference). The merger of the second technology is expected to combine the advantages of the second system. This article describes the implementation of an OFDM communication system with a network coding scheme using the Wireless Open-Access Research Platform. For its performance, an OFDM communication system with direct and multihop schemes has also been built. Furthermore, the parameters analysed are the bit error rate, the time of one transmission cycle and the trial of sending the image. Then these parameters are analysed and compared their performance. The results of the test show that conventional multihop and network coding schemes improve the average BER performance of the direct scheme by 10 dB at a value of 10-3. from the time of one transmission cycle an average of 27%, the increase in throughput is 28% faster and the PSNR improvement in image transmission is sent an average of 11 dB.

Original languageEnglish
Pages (from-to)49-55
Number of pages7
JournalPrzeglad Elektrotechniczny
Volume2023
Issue number6
DOIs
Publication statusPublished - 2023

Keywords

  • OFDM
  • direct
  • multihop
  • network coding

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