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Lattice reduction aided (LRA) detection with the LLL algorithm has been investigated to achieve the MIMO channel capacity with low computational complexity. This paper proposes an improved LRA-MMSE detection using the forward and the backward reduction LLL algorithms for the 8times8 MIMO to obtain more reliable estimates of the transmitted signals. The proposed method achieved much better BERs than...
In this paper, we propose a near-optimal, reduced-complexity turbo multiuser receiver for space-time block-coded multi-carrier code division multiple access (MC-CDMA) uplink systems over frequency selective fading environments based on particle swarm optimization (PSO) algorithm. The soft-input soft-output (SISO) multiuser detector based on a posteriori probability (APP) algorithm can achieve optimal...
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