An Approach to Optimum Joint Beamforming Design in a MIMO-OFDM Multiuser System
<p>This paper describes a multiuser scenario with several terminals acceding simultaneously to the same frequency channel. The objective is to design an optimal multiuser system that may be used as a comparative framework when evaluating other suboptimal solutions and to contribute to the alre...
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Online Access: | http://dx.doi.org/10.1155/S1687147204406033 |
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doaj-0d727bd1a3324673bcbac9e86b1633b72020-11-25T02:00:58ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992004-01-0120042210221An Approach to Optimum Joint Beamforming Design in a MIMO-OFDM Multiuser SystemPascual-Iserte AntonioPérez-Neira Ana I.Lagunas Miguel Ángel<p>This paper describes a multiuser scenario with several terminals acceding simultaneously to the same frequency channel. The objective is to design an optimal multiuser system that may be used as a comparative framework when evaluating other suboptimal solutions and to contribute to the already published works on this topic. The present work assumes that a centralized manager knows perfectly all the channel responses between all the terminals. According to this, the transmitters and receivers, using antenna arrays and leading to the so-called multiple-input-multiple-output (MIMO) channels, are designed in a joint beamforming approach, attempting to minimize the total transmit power subject to quality of service (QoS) constraints. Since this optimization problem is not convex, the use of the simulated annealing (SA) technique is proposed to find the optimum solution.</p>http://dx.doi.org/10.1155/S1687147204406033multiuser systemssimulated annealingantenna arraysMIMO systemsorthogonal frequency division multiplexingjoint beamforming |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Pascual-Iserte Antonio Pérez-Neira Ana I. Lagunas Miguel Ángel |
spellingShingle |
Pascual-Iserte Antonio Pérez-Neira Ana I. Lagunas Miguel Ángel An Approach to Optimum Joint Beamforming Design in a MIMO-OFDM Multiuser System EURASIP Journal on Wireless Communications and Networking multiuser systems simulated annealing antenna arrays MIMO systems orthogonal frequency division multiplexing joint beamforming |
author_facet |
Pascual-Iserte Antonio Pérez-Neira Ana I. Lagunas Miguel Ángel |
author_sort |
Pascual-Iserte Antonio |
title |
An Approach to Optimum Joint Beamforming Design in a MIMO-OFDM Multiuser System |
title_short |
An Approach to Optimum Joint Beamforming Design in a MIMO-OFDM Multiuser System |
title_full |
An Approach to Optimum Joint Beamforming Design in a MIMO-OFDM Multiuser System |
title_fullStr |
An Approach to Optimum Joint Beamforming Design in a MIMO-OFDM Multiuser System |
title_full_unstemmed |
An Approach to Optimum Joint Beamforming Design in a MIMO-OFDM Multiuser System |
title_sort |
approach to optimum joint beamforming design in a mimo-ofdm multiuser system |
publisher |
SpringerOpen |
series |
EURASIP Journal on Wireless Communications and Networking |
issn |
1687-1472 1687-1499 |
publishDate |
2004-01-01 |
description |
<p>This paper describes a multiuser scenario with several terminals acceding simultaneously to the same frequency channel. The objective is to design an optimal multiuser system that may be used as a comparative framework when evaluating other suboptimal solutions and to contribute to the already published works on this topic. The present work assumes that a centralized manager knows perfectly all the channel responses between all the terminals. According to this, the transmitters and receivers, using antenna arrays and leading to the so-called multiple-input-multiple-output (MIMO) channels, are designed in a joint beamforming approach, attempting to minimize the total transmit power subject to quality of service (QoS) constraints. Since this optimization problem is not convex, the use of the simulated annealing (SA) technique is proposed to find the optimum solution.</p> |
topic |
multiuser systems simulated annealing antenna arrays MIMO systems orthogonal frequency division multiplexing joint beamforming |
url |
http://dx.doi.org/10.1155/S1687147204406033 |
work_keys_str_mv |
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