Joint channel and phase noise estimation in MIMO-OFDM systems

I. M. Ngebani, I. Zibani, E. Matlotse, K. Tsamaase, J. M. Chuma

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

The combination of MIMO techniques with OFDM, MIMO-OFDM, is a promising way of achieving high spectral efficiency in wireless communication systems. However, the performance of MIMO-ODFM systems is highly degraded by RF impairments such as phase noise. Similar to the SISO case, phase noise in MIMO-OFDM systems results in a common phase error (CPE) and inter carrier interference (ICI). In this paper the problem of joint channel and phase noise estimation in a system with multiple transmit and receive antennas where each antenna is equipped with its own independent oscillator is tackled. The technique employed makes use of a novel placement of pilot carriers in the preamble and data portion of the MIMO-OFDM frame. Numerical results using a 16 and 64-QAM modulation scheme are provided to illustrate the effectiveness of the proposed scheme for MIMO-OFDM systems.

Original languageEnglish
DOIs
Publication statusPublished - Dec 5 2016
Event2016 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2016 - Saint-Gilles Les Bains, Réunion
Duration: Oct 10 2016Oct 13 2016

Other

Other2016 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2016
CountryRéunion
CitySaint-Gilles Les Bains
Period10/10/1610/13/16

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Instrumentation

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