Closed-form BER expression for OFDM with pilot-assisted channel estimation in a nonlinear multipath fading channel

Amir Ligata, Miha Smolnikar, Mihael Mohorcic, Haris Gacanin, Fumiyuki Adachi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Orthogonal frequency division multiplexing (OFDM) system with frequency domain equalization (FDE) requires reliable channel estimation (CE). OFDM has a problem of high peak-to-average power ratio (PAPR), which makes it very sensitive to nonlinear distortions, affecting the channel estimation accuracy. In this paper, we investigate the effect of the nonlinearity to the the OFDM system with pilot-assisted CE based on time or frequency division multiplexed (TDM/FDM) pilot. A closed-form bit error rate (BER) expressions for OFDM system are derived in a nonlinear and frequency-selective fading channel. The analysis is based on the Gaussian approximation of the nonlinear noise, which is also confirmed by computer simulation. Our results in terms of BER and mean square error (MSE) show, that FDM-pilot based CE is more sensitive to nonlinear distortions as compared to CE based on TDM-pilot.

Original languageEnglish
Title of host publication12th IEEE International Conference on Communication Systems 2010, ICCS 2010
Pages441-445
Number of pages5
DOIs
Publication statusPublished - 2010
Event12th IEEE International Conference on Communication Systems 2010, ICCS 2010 - Singapore, Singapore
Duration: 2010 Nov 172010 Nov 19

Publication series

Name12th IEEE International Conference on Communication Systems 2010, ICCS 2010

Other

Other12th IEEE International Conference on Communication Systems 2010, ICCS 2010
CountrySingapore
CitySingapore
Period10/11/1710/11/19

Keywords

  • Channel estimation
  • Closed-form BER
  • Nonlinearity
  • OFDM

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Closed-form BER expression for OFDM with pilot-assisted channel estimation in a nonlinear multipath fading channel'. Together they form a unique fingerprint.

  • Cite this

    Ligata, A., Smolnikar, M., Mohorcic, M., Gacanin, H., & Adachi, F. (2010). Closed-form BER expression for OFDM with pilot-assisted channel estimation in a nonlinear multipath fading channel. In 12th IEEE International Conference on Communication Systems 2010, ICCS 2010 (pp. 441-445). [5686603] (12th IEEE International Conference on Communication Systems 2010, ICCS 2010). https://doi.org/10.1109/ICCS.2010.5686603