Performance improvement for correlated 4×4 MIMO-OFDM systems by generalized prefix approach

Acar Y., Cooklev T., Doǧan H., Yildiz H.

2013 International Conference on Signal Processing and Communication, ICSC 2013, Noida, India, 12 - 14 December 2013, pp.181-184, (Full Text) identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/icspcom.2013.6719779
  • City: Noida
  • Country: India
  • Page Numbers: pp.181-184
  • Keywords: channel correlation, Generalized prefix, multiple-input multiple-output (MIMO), orthogonal frequency-division multiplexing (OFDM)
  • Istanbul Kültür University Affiliated: Yes

Abstract

Antenna correlation limits the multiplexing gain achieved by practical MIMO-OFDM systems and degrades the performance significantly. Recently, investigations are focused to reduce the antenna correlation by the designing new antenna structures. Differently, in this paper, we propose the generalized prefix approach to solve problem for correlated MIMO-OFDM system. It is shown that the proposed generalized prefix for 4×4 MIMO-OFDMexhibits a gain of about 8 dB over the conventional 4×4 MIMO-OFDM system at BER = 10 -4. © 2013 IEEE.