Interference cancellation based on divergence minimization for MIMO-OFDM receivers

  • Authors:

  • Carles Navarro Manchón;Gunvor E. Kirkelund;Bernard Fleury;Preben Mogensen;Luc Deneire;Troels B. Sørensen;Christian Rom

  • Affiliations:

  • Department of Electronic Systems, Aalborg University, Aalborg East;Department of Electronic Systems, Aalborg University, Aalborg East;Department of Electronic Systems, Aalborg University, Aalborg East and Forschungszentrum Telekommunikation Wien, Vienna, Austria;Department of Electronic Systems, Aalborg University, Aalborg East;Department of Electronic Systems, Aalborg University, Aalborg East and Université de Nice, Sophia Antipolis, Centre National de la Recherche Scientifique, France;Department of Electronic Systems, Aalborg University, Aalborg East;Infineon Technologies Denmark A/S, Aalborg, Denmark

  • Venue:
  • GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
  • Year:
  • 2009

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Abstract

In this paper, we present a novel iterative receiver for MIMO-OFDM systems with synchronous interferers. The receiver is derived based on the Kullback-Leibler divergence minimization framework, and combines channel estimation, interference cancellation and residual noise estimation in an iterative manner. By using both the pilot and data symbols, the channel estimator improves the accuracy of the estimates in each iteration, which leads to a more effective interference cancellation and data detection process. A performance evaluation based on Monte-Carlo simulations shows that the proposed scheme can effectively mitigate the effect of interferers, and operates very close to the single-user performance even in severe interference scenarios.