Performance Analysis of Power-Constrained DFT-Precoded ACO-OFDM Using Weighted Bussgang Theorem

Jia Qiu, Jiale Wang, Kai Zhang, Jie Lian, Guolei Zhu

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The application of DFT precoding in mitigating peak-to-average power ratio issues in asymmetrically clipped orthogonal frequency division multiplexing (ACO-OFDM) under power constraints is well-established. However, analytical solutions for assessing the communication performance of power-constrained ACO-OFDM remain a challenge. This is primarily due to the non-Gaussian distribution of the DFT-precoded ACO-OFDM signal, rendering the classical Bussgang theorem ineffective for modeling clipping noise. In our study, we introduce the weighted Bussgang theorem as an alternative method to evaluate the communication performance of the DFT-precoded ACO-OFDM system. Our numerical results demonstrate the effectiveness of this approach in analyzing SNR and BER performance.

Original languageEnglish
Pages (from-to)372-376
Number of pages5
JournalIEEE Communications Letters
Volume28
Issue number2
DOIs
StatePublished - 1 Feb 2024

Keywords

  • DFT precoding
  • OFDM
  • optical wireless communications
  • PAPR
  • power constraint

Fingerprint

Dive into the research topics of 'Performance Analysis of Power-Constrained DFT-Precoded ACO-OFDM Using Weighted Bussgang Theorem'. Together they form a unique fingerprint.

Cite this