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Training Design upon Mutual Information for Spatially Correlated MIMO-OFDM
Ansvarig organisation
2010 (Engelska)Konferensbidrag, Publicerat paper (Refereegranskat) Published
Abstract [en]

Our goal in this paper is to address channel estimations for spatially correlated multiple-input multiple-output with orthogonal frequency-division multiplexing (MIMO-OFDM) system upon the conditional mutual information (CMI). The design of superimposed training signal by maximizing the channel CMI is fully investigated. First, the interior-point-method is employed to obtain the optimal superimposed training signals for the general case of channel correlations. In addition, two efficient approximate designs are also proposed by invoking Karush-Kuhn-Tucker condition for optimality of convex programming. The first approximate design is obtained by proposing a iterativebisection-procedure (IBP), while the second one is in “waterfilling” closed-form. Numerical results demonstrate the excellent performance of the proposed designs and give the connection between channel estimation error and mutual information.

Ort, förlag, år, upplaga, sidor
Sydney, Australia: IEEE , 2010.
Nyckelord [en]
multiple-input multiple-output, orthogonal frequency-division multiplexing
Nationell ämneskategori
Telekommunikation Signalbehandling
Identifikatorer
URN: urn:nbn:se:bth-7857Lokalt ID: oai:bth.se:forskinfo900FC6CC390E6726C12576DB0030C2E9OAI: oai:DiVA.org:bth-7857DiVA, id: diva2:835524
Konferens
IEEE Wireless Communications and Networking Conference (WCNC'10)
Tillgänglig från: 2012-09-18 Skapad: 2010-03-03 Senast uppdaterad: 2015-06-30Bibliografiskt granskad

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