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- W2100338777 abstract "Cognitive radio is a novel concept that enables wireless systems to sense the environment, adapt, and learn from previous experience to improve the quality of the communication. However, CR requires a flexible and adaptive physical layer in order to perform the required tasks efficiently. In this article, CR systems and their requirement of a physical layer are discussed, and the orthogonal frequency division multiplexing technique is investigated as a candidate transmission technology for CR. The challenges that arise from employing OFDM in CR systems are identified. The cognitive properties of some OFDM-based wireless standards also are discussed to indicate the trend toward a more cognitive radio." @default.
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- W2100338777 date "2009-04-01" @default.
- W2100338777 modified "2023-10-17" @default.
- W2100338777 title "OFDM for cognitive radio: merits and challenges" @default.
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- W2100338777 doi "https://doi.org/10.1109/mwc.2009.4907554" @default.
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