BER analysis for hard MMSE detection in MIMO systems

  • Authors:
  • Peng Liu;Il-Min Kim

  • Affiliations:
  • Queen's University, Kingston, Ontario, Canada;Queen's University, Kingston, Ontario, Canada

  • Venue:
  • Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication
  • Year:
  • 2011

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Abstract

In this paper, we first conduct error analysis for a general system with decision statistic, z = ax + u, where a 0, x is the transmitted signal, and u is the additive noise which is arbitrarily distributed and independent of x. For this system, we derive the exact and closed-form bit-error rate (BER) expressions for M-ary pulse amplitude modulation (PAM) and quadrature amplitude modulation (QAM), which include the well-known BER result in [?] as a special case. Based on the general analysis, we further derive the exact and closed-form instantaneous BER expression for hard MMSE detection in multiple-input and multiple-output (MIMO) systems. Finally, the analysis is verified through our own Monte Carlo simulations and the simulation results reported in the literature.