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Sub-Optimal Soft-Output MAP Detector with Lattice Reduction Based on Euclidean Distance Interpolation

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3 Author(s)
Silvola, P. ; Nokia Technol. Platforms, Oulu ; Hooli, K. ; Juntti, M.

The use of lattice reduction (LR) has been shown to be a very effective method for signal detection in multiple antenna systems. In this paper, the performance of the sub-optimal soft-output maximum a posteriori (MAP) detector with lattice reduction is studied. We propose a polynomial-time method to generate the desired size candidate list in the reduced lattice. This sub-optimal soft-output MAP detector provides a near-optimal performance in uncorrelated MIMO systems, but with significantly reduced computational complexity.

Published in:

Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th

Date of Conference:

22-25 April 2007