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A rate control scheme is described for zero-forcing beamforming (ZFBF) multiuser multiple-input and multiple-output (MU-MIMO) systems with a QR-decomposition maximum likelihood detector (MLD) at the receiver. For selected users, a modulation-and- coding set is selected for each substream by estimating the per-substream post-MLD signal-to-interference- plus-noise ratio. Iterative modified QR-decomposition MLD is employed at the receiver to achieve the throughput expected from the transmitter. The simulation results demonstrated that the proposed rate-control scheme achieved the target packet error rate while increasing the throughout for ZFBF-MU- MIMO systems as the number of user candidates increases.
Published in:
Future Generation Communication and Networking (FGCN 2007)
(Volume:2
)
Date of Conference: 6-8 Dec. 2007
- Page(s):
- 159 - 162
- Print ISBN:
- 0-7695-3048-6
- INSPEC Accession Number:
- 9895176
- Conference Location :
- Jeju
- Digital Object Identifier :
- 10.1109/FGCN.2007.190
- Product Type:
- Conference Publications
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