title: Evaluation of clipping based iterative PAPR reduction techniques for FBMC systems.
abstract: This paper investigates filter bankmulticarrier (FBMC), a multicarrier modulation technique exhibiting an extremely low adjacent channel leakage ratio (ACLR) compared to conventional orthogonal frequency division multiplexing (OFDM) technique. The low ACLR of the transmitted FBMC signal makes it especially favorable in cognitive radio applications, where strict requirements are posed on out-of-band radiation. Large dynamic range resulting in high peak-to-average power ratio (PAPR) is characteristic of all sorts of multicarrier signals. The advantageous spectral properties of the high-PAPR FBMC signal are significantly degraded if nonlinearities are present in the transceiver chain. Spectral regrowth may appear, causing harmful interference in the neighboring frequency bands. This paper presents novel clipping based PAPR reduction techniques, evaluated and compared by simulations and measurements, with an emphasis on spectral aspects. The paper gives an overall comparison of PAPR reduction techniques, focusing on the reduction of the dynamic range of FBMC signals without increasing out-of-band radiation. An overview is presented on transmitter oriented techniques employing baseband clipping, which can maintain the system performance with a desired bit error rate (BER).
authors.affiliation: Inter-University Centre for Telecommunications and Informatics (ETIK), Kassai straße 26, Debrecen H-4028, Hungary ; Department of Broadband Infocommunications and Electromagnetic Theory, Budapest University of Technology and Economics (BME), Egry József utca 18, Budapest H-1111, Hungary.
authors.forename: Zsolt
authors.initials: Z
authors.lastname: Kollár
authors.affiliation: Department of Broadband Infocommunications and Electromagnetic Theory, Budapest University of Technology and Economics (BME), Egry József utca 18, Budapest H-1111, Hungary.
authors.forename: Lajos
authors.identifier: 0000-0003-4113-8535
authors.initials: L
authors.lastname: Varga
authors.affiliation: Department of Broadband Infocommunications and Electromagnetic Theory, Budapest University of Technology and Economics (BME), Egry József utca 18, Budapest H-1111, Hungary.
authors.forename: Bálint
authors.identifier: 0000-0001-7567-346X
authors.initials: B
authors.lastname: Horváth
authors.affiliation: Department of Broadband Infocommunications and Electromagnetic Theory, Budapest University of Technology and Economics (BME), Egry József utca 18, Budapest H-1111, Hungary.
authors.forename: Péter
authors.identifier: 0000-0002-0301-2168
authors.initials: P
authors.lastname: Bakki
authors.affiliation: Department of Broadband Infocommunications and Electromagnetic Theory, Budapest University of Technology and Economics (BME), Egry József utca 18, Budapest H-1111, Hungary.
authors.forename: János
authors.identifier: 0000-0003-3830-191X
authors.initials: J
authors.lastname: Bitó
mesh_terms: D003198:Computer Simulation / Q000592:standards; D004867:Equipment Design / Q000379:methods* / Q000592:standards; D012815:Signal Processing, Computer-Assisted; D013685:Telecommunications / Q000592:standards