Enabling Low-Complexity MIMO in FBMC-OQAM
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MATLAB code for the paper: “Enabling Low-Complexity MIMO in FBMC-OQAM”.
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| Authors | Ronald Nissel, and Markus Rupp |
| Journal/Conference Name | 2016 IEEE Globecom Workshops (GC Wkshps) |
| Paper Category | Communications |
| Paper Abstract | Filter Bank Multi-Carrier (FBMC) offers superior spectral properties compared to Orthogonal Frequency Division Multiplexing (OFDM), at the cost of imaginary interference, which makes the application of Multiple-Input and Multiple-Output (MIMO) more challenging. By spreading symbols in time (or frequency), we can completely eliminate the imaginary interference, so that all MIMO techniques known in OFDM can be straightforwardly applied in FBMC. The spreading process itself has low complexity because it is based on Hadamard matrices. Although spreading allows to restore complex orthogonality in FBMC within one transmission block, we observe interference from neighboring blocks. By including a guard timeslot, the signal-to-interference ratio can be further improved. Furthermore, we investigate the effect of a time-variant channel on such spreading approach. Finally, testbed measurements show the applicability of our FBMC based MIMO transmission scheme in real world environments. |
| Date of publication | 2016 |
| Code Programming Language | MATLAB |
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