Asymptotic Presentation of Intrinsic Interference for FBMC/OQAM Signals in Quasi-Static Channels

Konferenz: European Wireless 2016 - 22th European Wireless Conference
18.05.2016 - 20.05.2016 in Oulu, Finnland

Tagungsband: European Wireless 2016

Seiten: 6Sprache: EnglischTyp: PDF

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Autoren:
Petrov, Dmitry (Magister Solutions Ltd., Jyväskylä, Finland)
Hämäläinen, Timo (Faculty of Information Technology, University of Jyväskylä, Finland)
Melnik, Sergei (Central Scientific Research Institute of Communication, Moscow, Russia)

Inhalt:
The paper presents an in-depth analysis of interference intrinsic to the FBMC/OQAM systems when the signal is transmitted over frequency-dispersive channels. This kind of effect appears due to the real-time orthogonality introduced in the filter bank for the sake of much better frequency containment of the signal. FBMC is a promising alternative to OFDM in applications where more efficient and flexible spectrum utilization should be achieved, for example in wide-band PMR systems, cognitive radios, coexistence scenarios, etc. Closed-form asymptotic expressions developed in the study provide insight into FBMC/OQAM interference situation. In the channels with deep fades, intrinsic interference can have a considerable impact on the sub-carrier SINR of the received signal. The results of the paper provide an important theoretical basis for the prediction of linklevel performance, in particular for link-to-system interface used in system-level simulations. The findings of the study can also be used for practical applications, such as parallel equalization in FBMC receivers.