PAPR Reduction in the FBMC-OQAM System via Segment-Based Optimization

Ji Hyun Moon, Ye Ri Nam, Jeong Ho Kim

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


Multicarrier modulation (MCM) schemes have been intensively studied and developed, because of their numerous advantages, which include high data rate and immunity to multipath fading. Among MCM schemes, filter bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) has attracted considerable interest in recent years. However, the FBMC-OQAM system exhibits a high peak-To-Average power ratio (PAPR). In this paper, we investigate the FBMC-OQAM system and present a solution for the problem of high PAPR that involves two separate components: minimizing the PAPR of each data block and optimizing each segment based on the preceding result. Unlike conventional partial transmit sequence techniques, the new method uses fewer combinations of phase factors, thereby decreasing the complexity of the algorithm while still reducing PAPR. In addition, sparse clipping signals are recovered by compressed sensing, and the bit error rates were analyzed based on sparsity level. The reductions in PAPR were also numerically evaluated using simulations. The simulation results confirm that the proposed technique effectively reduces the high peaks in the FBMC-OQAM system.

Original languageEnglish
Pages (from-to)4994-5002
Number of pages9
JournalIEEE Access
StatePublished - 15 Jan 2018

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea grant through the Korea government under Grant NRF-2014R1A1A22053294.

Publisher Copyright:
© 2013 IEEE.


  • Clipping signal recovery
  • high PAPR
  • overlap
  • segment-based optimization


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