Downlink Precoder and Equalizer Designs for Multi-User MIMO FBMC/OQAM

Konferenz: WSA 2016 - 20th International ITG Workshop on Smart Antennas
09.03.2016 - 11.03.2016 in München, Deutschland

Tagungsband: ITG-Fb. 261: WSA 2016

Seiten: 8Sprache: EnglischTyp: PDF

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Autoren:
Candido, Oliver De; Nossek, Josef A. (Institute for Circuit Theory and Signal Processing, Technische Universität München, 80290 Munich, Germany)
Cheema, Sher Ali (Communications Research Laboratory, Ilmenau University of Technology, P.O. Box 100565, 98684 Ilmenau, Germany)
Baltar, Leonardo G. (Institute for Circuit Theory and Signal Processing, Technische Universität München, 80290 Munich Next Generation and Standards, Intel Deutschland GmbH, Germany)
Haardt, Martin (Communications Research Laboratory, Ilmenau University of Technology, Germany)

Inhalt:
In this contribution we propose two new iterative precoder and equalizer designs for the Downlink (DL) scenario of Multi-User (MU)-MIMO systems which employ Filter Bank based Multi-Carrier (FBMC) with Offset-Quadrature Amplitude Modulation (O-QAM). In a MU-MIMO DL scenario, we must design our per-subcarrier filters to compensate the inter-symbol and inter-carrier interference (ISI and ICI) present in an FBMC/OQAM system in addition to multi-user interference (MUI). The first method presented takes advantage of the Mean Squared Error (MSE)-duality to design Minimum MSE (MMSE)-based precoders and equalizers. The second method looks at maximizing the Signal-to-Leakage Ratio (SLR) in the transmitter and the Signalto- Interference plus Noise Ratio (SINR) in the receiver. Through numerical simulations we will evaluate the performance of these methods and compare them to recent approaches found in the literature.