Uplink CFO compensation for FBMC multiple access and OFDMA in a high mobility scenario
- González, Gustavo José
- Gregorio, Fernando Hugo
- Cousseau, Juan Edmundo
- Wichman, Risto
- Werner, Stefan
DOIAbstract
We study in this work CFO compensation methods for two multicarrier multiple access techniques in a high mobility scenario. In particular, we consider orthogonal frequency division multiple access (OFDMA) and filter bank multicarrier multiple access (FBMC-MA). The main motivation for this study is not only the different sensitivity these multicarrier techniques have to CFO but also the different methods they use to reduce CFO effect. In a high mobility scenario the CFO is re-estimated to follow its variation. We show that the frequency at which the CFO is re-estimated has a strong influence in the performance and the complexity of the proposed compensation methods. Additionally, we present a low-complexity CFO compensation method for OFDMA ...
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