MISO Broadcasting FBMC System for Highly Frequency Selective Channels
Conference: WSA 2014 - 18th International ITG Workshop on Smart Antennas
03/12/2014 - 03/13/2014 at Erlangen, Germany
Proceedings: WSA 2014
Pages: 7Language: englishTyp: PDF
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Authors:
Newinger, Michael; Baltar, Leonardo G.; Nossek, Josef A. (Institute for Circuit Theory and Signal Processing, Technische Universitaet Muenchen, 80290 Munich, Germany)
Swindlehurst, A. Lee (Department for Electrical Engineering & Computer Science, University of California, Irvine, Irvine, CA 92697, USA)
Abstract:
In this contribution we propose new techniques for multi-user MISO broadcasting with Filter Bank based Multicarrier (FBMC) systems using offset-QAM (OQAM). FBMC is a prominent alternative to OFDM that can achieve higher bandwidth efficiency since no cyclic prefix is required. However, when extending FBMC to a multi-antenna system, approaches that are used in OFDM cannot be directly applied due to its special structure and the existence of inter-carrier and intersymbol interference. We will consider a downlink scenario for the transmission from a multi-antenna base station to several single-antenna mobile stations. To this end, a Minimum Mean Square Error (MMSE) based multi-tap precoder and equalizer will be designed. Our method is of particular interest for highly frequency selective channels.