Application of DFT Precoding with Repeated Clipping and Filtering for Minimizing Peak to Average Power Ratio in OFDM System

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@article{1702326,
      author = {Agwah, B.C., Akaneme, S. A., Nwabueze, C. A.},
      title = {Application of DFT Precoding with Repeated Clipping and Filtering for Minimizing Peak to Average Power Ratio in OFDM System},
      journal = {Iconic Research And Engineering Journals},
      year = {2020},
      volume = {3},
      number = {11},
      pages = {265-273},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1702326.pdf},
      abstract = {With the increasing growth of digital wireless communication in recent decades, the demand for high-speed data transmission has grown. OFDM techniques are at present being implemented to sustain the demand for more communication capacity. As a promising system for future wireless broadband communication, MIMO-OFDM has attracted more interest recently. It should be noted that despite the advantages offer by MIMO-OFDM technology, it still suffers from the high fluctuations of the transmitted signal called the peak-to-average power ratio (PAPR). Investigation on the performance of precoding with clipping and filtering technique, for the reduction of PAPR in OFDM signal has been conducted. An algorithm for minimizing PAPR of OFDM signal performance usingDiscrete Fourier Transform (DFT) precoding with repeated clipping and filtering (RCF) was developed and implemented. The developed algorithm was integrated with conventional OFDM system for LTE standard. Simulations were conducted in MATLAB environment to study the effectiveness of the developed algorithm. The result indicated that the introduction of precoder makes the original signal of the OFDM to be equal to 7.557 dB before the application of clipping and filtering for four iterations.  Hence, the overall improvement achieved considering the value of PAPR at fourth iteration is 46.91%.},
      keywords = {LTE Standard, OFDM, PAPR, Precoding, RCF},
      month = {May},
  }