Risto Wichman — accepted AI-conference papers

2017

Predistortion for power amplifier linearization in full-duplex transceivers without extra RF chain

Fernando H. Gregorio, Gustavo J. González, Juan E. Cousseau, Taneli Riihonen, Risto Wichman

ICASSP 2017accepted

Genuine full-duplex operation requires effective mitigation of self-interference (SI) due to simultaneous transmission and reception at the same frequency band. In addition to its well-known harmful effect on signals of high peak-to-average power ratio, nonlinear behavior of a power amplifier (PA) c…

Cited by 0 Source ↗Scholar ↗

2015

Subspace-based phase noise estimation in OFDM receivers

Pramod Mathecken, Stefan Werner, Taneli Riihonen, Risto Wichman

ICASSP 2015accepted

In this paper, we consider the problem of channel and phase noise estimation for an orthogonal frequency division multiplexing (OFDM) radio link. We solve this problem by first investigating the subspace in which the phase noise spectral vector lies and then exploiting this information during estima…

Cited by 0 Source ↗Scholar ↗