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A simplified MMSE detection for iterative receivers in multiple antenna systems

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3 Author(s)
Seunghwan Choi ; Digital Transm. Lab., Yonsei Univ., Seoul, South Korea ; Jongkyung Kim ; Jong-Soo Seo

Simplified minimum mean square error (MMSE) detection technique combined with soft interference cancellation (SoIC) is proposed for the iterative receivers in multiple antenna systems. To avoid repeated matrix inversions required to obtain the MMSE filter coefficients during the iteration between the soft detector and decoder, simplified matrix inversion techniques are applied to calculate the filter coefficient matrix. Simulation results show that the proposed MMSE detections with SoIC indicate a comparable or slightly degraded detection performance while achieving a significantly reduced complexity as compared to the conventional MMSE detection with SoIC.

Published in:

Broadband Multimedia Systems and Broadcasting (BMSB), 2011 IEEE International Symposium on

Date of Conference:

8-10 June 2011