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Erschienen in:
2014 | OriginalPaper | Buchkapitel
Nonlinear Coherent Detection Algorithms of Nonorthogonal Multifrequency Signals
verfasst von : Sergey V. Zavjalov, Sergey B. Makarov, Sergey V. Volvenko
Erschienen in: Internet of Things, Smart Spaces, and Next Generation Networks and Systems
Verlag: Springer International Publishing
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A study of detection algorithms of random sequences of nonorthogonal Spectrally Efficient Frequency Division Multiplexing (SEFDM) signals has been conducted. Realization complexity of optimal coherent algorithms forces to explore more simple processing techniques. A nonlinear bit-by-bit coherent algorithm with interchannel interference compensation and an algorithm based on decision diagram have been developed and studied. Application of the proposed nonlinear algorithms can significantly improve BER performance of multifrequency signals with nonorthogonal frequency spacing between subcarriers.