Generalized inverse aided papr-aware linear precoder design for mimo-ofdm system

Hyunsu Cha, Hyukjin Chae, Kiyeon Kim, Jinyoung Jang, Janghoon Yang, Dong Ku Kim

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We propose a linear precoding scheme for a single user multiple-input- multiple-output orthogonal frequency division multiplexing (OFDM) system to minimize peak to average power ratio (PAPR) by using redundant spatial resources at the transmitter through a singular-value-decomposition-based generalized inverse. The proposed precoder based on the generalized inverse is composed of two parts. One is for minimizing PAPR, and the other is for obtaining the multiplexing gain. Moreover, the proposed precoder contains a scalar parameter α that quantifies the received signal-to-noise power ratio (SNR) loss at the cost of PAPR reduction. Even in cases of small SNR loss, the proposed scheme dramatically reduces PAPR. Furthermore, simulation results show that we can obtain a PAPR close to 1 by using dozens of transmission antennas with small SNR loss.

Original languageEnglish
Article number6823691
Pages (from-to)1363-1366
Number of pages4
JournalIEEE Communications Letters
Issue number8
Publication statusPublished - 2014 Aug

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering


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