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IEICE TRANSACTIONS on Communications

Rate Control for Zero-Forcing Beamforming Multiuser MIMO Systems with QR-Decomposition MLD Receiver

Masaaki FUJII

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Summary :

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.

Publication
IEICE TRANSACTIONS on Communications Vol.E91-B No.2 pp.637-640
Publication Date
2008/02/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e91-b.2.637
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

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