Joint Channel and Phase Noise Estimation in MIMO-OFDM Systems

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

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


The combination of multiple-input multiple-output (MIMO) techniques with orthogonal frequency division multiplexing (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 radio frequency (RF) impairments such as phase noise. Similar to the single-input single-output (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 quadrature amplitude modulation QAM schemes are provided to illustrate the effectiveness of the proposed scheme for MIMO-OFDM systems.

Original languageEnglish
Article number012007
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - May 11 2017
Event4th IEEE Radio and Antenna Days of the Indian Ocean, IEEE RADIO 2016 - Saint-Gilles Les Bains, Reunion Island, France
Duration: Oct 10 2016Oct 13 2016

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • General Engineering


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