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

Persönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt

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)

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.