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We describe a channel-vector quantization scheme that is suitable for multiple stream transmission per user in zero-forcing beamforming (ZFBF) multiuser multiple-input and multiple output (MU-MIMO) systems with finite rate feedback. Multiple subsets of a channel matrix are quantized to vectors from random vector codebooks for finite rate feedback. The quantization vectors with an angle difference that is closer to orthogonal are then selected and their indexes are fed back to the transmitter. Simulation results demonstrate that the proposed scheme achieves a better average throughput than that serving a single stream per user when the number of active users is smaller than the number of transmit antennas and that it provides an average throughput close to that serving a single stream per user when the number of users is equal to the number of transmit antennas.

- Publication
- IEICE TRANSACTIONS on Communications Vol.E92-B No.3 pp.1035-1038

- Publication Date
- 2009/03/01

- Publicized

- Online ISSN
- 1745-1345

- DOI
- 10.1587/transcom.E92.B.1035

- Type of Manuscript
- LETTER

- Category
- Wireless Communication Technologies

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Masaaki FUJII, "Zero-Forcing Beamforming Multiuser-MIMO Systems with Finite Rate Feedback for Multiple Stream Transmission per User" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 3, pp. 1035-1038, March 2009, doi: 10.1587/transcom.E92.B.1035.

Abstract: We describe a channel-vector quantization scheme that is suitable for multiple stream transmission per user in zero-forcing beamforming (ZFBF) multiuser multiple-input and multiple output (MU-MIMO) systems with finite rate feedback. Multiple subsets of a channel matrix are quantized to vectors from random vector codebooks for finite rate feedback. The quantization vectors with an angle difference that is closer to orthogonal are then selected and their indexes are fed back to the transmitter. Simulation results demonstrate that the proposed scheme achieves a better average throughput than that serving a single stream per user when the number of active users is smaller than the number of transmit antennas and that it provides an average throughput close to that serving a single stream per user when the number of users is equal to the number of transmit antennas.

URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1035/_p

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@ARTICLE{e92-b_3_1035,

author={Masaaki FUJII, },

journal={IEICE TRANSACTIONS on Communications},

title={Zero-Forcing Beamforming Multiuser-MIMO Systems with Finite Rate Feedback for Multiple Stream Transmission per User},

year={2009},

volume={E92-B},

number={3},

pages={1035-1038},

abstract={We describe a channel-vector quantization scheme that is suitable for multiple stream transmission per user in zero-forcing beamforming (ZFBF) multiuser multiple-input and multiple output (MU-MIMO) systems with finite rate feedback. Multiple subsets of a channel matrix are quantized to vectors from random vector codebooks for finite rate feedback. The quantization vectors with an angle difference that is closer to orthogonal are then selected and their indexes are fed back to the transmitter. Simulation results demonstrate that the proposed scheme achieves a better average throughput than that serving a single stream per user when the number of active users is smaller than the number of transmit antennas and that it provides an average throughput close to that serving a single stream per user when the number of users is equal to the number of transmit antennas.},

keywords={},

doi={10.1587/transcom.E92.B.1035},

ISSN={1745-1345},

month={March},}

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TY - JOUR

TI - Zero-Forcing Beamforming Multiuser-MIMO Systems with Finite Rate Feedback for Multiple Stream Transmission per User

T2 - IEICE TRANSACTIONS on Communications

SP - 1035

EP - 1038

AU - Masaaki FUJII

PY - 2009

DO - 10.1587/transcom.E92.B.1035

JO - IEICE TRANSACTIONS on Communications

SN - 1745-1345

VL - E92-B

IS - 3

JA - IEICE TRANSACTIONS on Communications

Y1 - March 2009

AB - We describe a channel-vector quantization scheme that is suitable for multiple stream transmission per user in zero-forcing beamforming (ZFBF) multiuser multiple-input and multiple output (MU-MIMO) systems with finite rate feedback. Multiple subsets of a channel matrix are quantized to vectors from random vector codebooks for finite rate feedback. The quantization vectors with an angle difference that is closer to orthogonal are then selected and their indexes are fed back to the transmitter. Simulation results demonstrate that the proposed scheme achieves a better average throughput than that serving a single stream per user when the number of active users is smaller than the number of transmit antennas and that it provides an average throughput close to that serving a single stream per user when the number of users is equal to the number of transmit antennas.

ER -