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Title:
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A maximum approach for robust MIMO design: combining OSTBC and beamforming with minimum transmission power requirements
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Author:
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Pascual Iserte, Antonio; Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A.
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. A&MP - Grup de Processament d'Arrays i Sistemes Multicanal |
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Abstract:
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In this paper we address the problem of the design of a transmitter
in a Multi-Input-Multi-Output (MIMO) space diversity system.
We consider a design which is robust to errors in the channel estimate
available at the transmitter. The design is based on the minimization
of the necessary transmit power while guaranteeing a
minimum and specified Quality of Service (QoS) in terms of Signal
to Noise Ratio (SNR) with a certain probability. According
to this objective, the transmitter exploits all the eigenmodes of the
MIMO channel estimate, distributing the transmit power in a robust
way among the channel modes by using orthonormal temporal
signatures. In order to guarantee a full rate transmission, the orthonormal
temporal signatures designed for real constellations in
Orthogonal Space Time Block Codes (OSTBC) are used, leading
to a system structure based on the combination of OSTBC and orthogonal
weighted beamforming. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
-Signal theory (Telecommunication)
-MIMO systems
-Radio--Transmitters and transmission
-Senyal, Teoria del (Telecomunicació)
-Ràdio |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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