A zero-forcing multiuser transmitter preprocessing scheme for downlink communications
A zero-forcing multiuser transmitter preprocessing scheme for downlink communications
In this letter a multiuser transmitter preprocessing (MUTP) approach is proposed for downlink wireless communications, such as in spatial-division multiple-access (SDMA) or direct-sequence code-division multiple-access (DS-CDMA) system. In the proposed MUTP the preprocessing matrix is obtained by constructing a subspace that is orthogonal to the interference subspace without relying on eigen-analysis. The proposed MUTP fully removes the downlink multiuser interference, resulting in the zero-forcing (ZF) solution. It is capable of achieving the same bit error rate (BER) performance as the conventional ZF-based MUTP (ZF-MUTP).
Pre-filtering, preprocessing, zero-forcing, multiple-input multiple-output, space-division multiple-access, direct-sequence code-division multiple-access, orthogonal subspace.
862-865
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Yang, Lie-Liang
(2008)
A zero-forcing multiuser transmitter preprocessing scheme for downlink communications.
IEEE Transactions on Communications, 56 (6), .
(doi:10.1109/TCOMM.2008.060354).
(In Press)
Abstract
In this letter a multiuser transmitter preprocessing (MUTP) approach is proposed for downlink wireless communications, such as in spatial-division multiple-access (SDMA) or direct-sequence code-division multiple-access (DS-CDMA) system. In the proposed MUTP the preprocessing matrix is obtained by constructing a subspace that is orthogonal to the interference subspace without relying on eigen-analysis. The proposed MUTP fully removes the downlink multiuser interference, resulting in the zero-forcing (ZF) solution. It is capable of achieving the same bit error rate (BER) performance as the conventional ZF-based MUTP (ZF-MUTP).
This record has no associated files available for download.
More information
Accepted/In Press date: June 2008
Keywords:
Pre-filtering, preprocessing, zero-forcing, multiple-input multiple-output, space-division multiple-access, direct-sequence code-division multiple-access, orthogonal subspace.
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 264859
URI: http://eprints.soton.ac.uk/id/eprint/264859
PURE UUID: d8e372ad-0482-4836-8d66-9d930a2db014
Catalogue record
Date deposited: 16 Nov 2007 15:55
Last modified: 15 Mar 2024 02:59
Export record
Altmetrics
Contributors
Author:
Lie-Liang Yang
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics