FBMC/OQAM for the Asynchronous Multi-User MIMO Uplink

Konferenz: WSA 2014 - 18th International ITG Workshop on Smart Antennas
12.03.2014 - 13.03.2014 in Erlangen, Germany

Tagungsband: ITG-Fb. 247: WSA 2014

Seiten: 6Sprache: EnglischTyp: PDF

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Cheng, Yao; Li, Peng; Haardt, Martin (Communications Research Laboratory, Ilmenau University of Technology, P. O. Box 100565, 98694 Ilmenau, Germany)

In this paper, we evaluate the performance of filter bank-based multi-carrier with offset quadrature amplitude modulation (FBMC/OQAM) for the multi-user multiple-input multiple-output (MIMO) uplink in the presence of timing and frequency misalignments. In such a scenario, multiple access is achieved by assigning groups of sub-carriers to user nodes. The nodes are equipped with multiple antennas, and different frequency selective channel models are considered. In addition, a comparison with orthogonal frequency division multiplexing with the cyclic prefix insertion (CP-OFDM) as the currently widely used multi-carrier scheme is presented. The greater robustness of FBMC/OQAM against a lack of synchronization in the time and the frequency domain compared to CP-OFDM is shown via extensive numerical results.