Robust transceiver optimization in downlink multiuser MIMO systems with channel uncertainty

Nikola Vucic, Holger Boche, Shuying Shi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

20 Scopus citations

Abstract

The problem of transceiver optimization in multiuser multiple-input multiple-output downlink wireless systems is considered. The base station is assumed to possess only estimated, erroneous values of channel coefficients. The exact channels lie in uncertainty regions, specified by the Frobenius norms of the error matrices. An iterative optimization of the transmit and receive filters is performed with the goal of minimizing the total transmit power, while satisfying the users' mean square error (MSE) targets for all channels from the uncertainty regions. Each iteration consists of two steps that can be equivalently rewritten as semidefinite programs with efficient numerical solutions. It is shown that the whole algorithm converges. The proposed framework can be applied for solving robust counterparts of several related MSE-optimization problems. The modifications of the proposed algorithms for accommodating box-like disturbances are analyzed, as well

Original languageEnglish
Title of host publicationICC 2008 - IEEE International Conference on Communications, Proceedings
Pages3516-3520
Number of pages5
DOIs
StatePublished - 2008
Externally publishedYes
EventIEEE International Conference on Communications, ICC 2008 - Beijing, China
Duration: 19 May 200823 May 2008

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Conference

ConferenceIEEE International Conference on Communications, ICC 2008
Country/TerritoryChina
CityBeijing
Period19/05/0823/05/08

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