2009
DOI: 10.1007/s11277-009-9897-7
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Complexity Reduction by Using QR-Based Scheme in Computing Capacity for Optimal Transmission

Abstract: Multiple-input-multiple-output (MIMO) technique is often employed to increase capacity in comparing to systems with single antenna. However, the computational complexity in evaluating channel capacity or transmission rate (data rate) grows proportionally to the number of employed antennas at both ends of the wireless link. Recently, the QR decomposition (QRD) based detection schemes have emerged as a low-complexity solution. After conducting QRD on a full channel matrix that results in a triangular matrix, we … Show more

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