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Exploiting the structure of OSTBC's to improve the robustness of worst-case optimization based linear multi-user MIMO receivers

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3 Author(s)
Yue Rong ; Dept. of Comm. Syst., Duisburg Univ., Germany ; ShahbazPanahi, S. ; Gershman, A.B.

In this paper, we improve the performance of robust linear receivers for multi-user multiple-input multiple-output (MIMO) wireless systems by exploiting the inherent structure of orthogonal space-time block codes (OSTBC). This particular structure results in a worst-case optimization problem with structured uncertainty set. Exploiting this structure, an improved robust linear receiver with a combination of fixed diagonal loading and adaptive non-diagonal loading of the data covariance matrix is obtained.

Published in:
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on  (Volume:4 )

Date of Conference: 18-23 March 2005

Page(s):
iv/781 - iv/784 Vol. 4
ISSN :
1520-6149
Print ISBN:
0-7803-8874-7
INSPEC Accession Number:
8564520
Digital Object Identifier :
10.1109/ICASSP.2005.1416125
Product Type:
Conference Publications

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