662 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PotsdamDE34 papers
- University of HelsinkiFI26 papers
- Aalto UniversityFI23 papers
- Tampere UniversityFI18 papers
- Centre National de la Recherche ScientifiqueFR17 papers
- Northeastern UniversityUS17 papers
- University of JyväskyläFI14 papers
- Brown UniversityUS13 papers
- Technical University of MunichDE13 papers
- Aarhus UniversityDK12 papers
- Helsinki Institute of PhysicsFI10 papers
- Charles UniversityCZ9 papers
22 papers · 1 filter
Critical adsorption of polyelectrolytes onto charged Janus nanospheres
Sidney J. de Carvalho, Ralf Metzler, Andrey G. Cherstvy
Based on extensive Monte Carlo simulations and analytical considerations we study the electrostatically driven adsorption of flexible polyelectrolyte chains onto charged Janus nano…
Bayesian Hierarchical Model of Total Variation Regularisation for Image Deblurring
Marko Järvenpää, Robert Piché
A Bayesian hierarchical model for total variation regularisation is presented in this paper. All the parameters of an inverse problem, including the "regularisation parameter", are…
Differential Forms and Boundary Integral Equations for Maxwell-Type Problems
Stefan Kurz, Bernhard Auchmann
We present boundary-integral equations for Maxwell-type problems in a differential-form setting. Maxwell-type problems are governed by the differential equation $(δ\mathrm{d}-k^2)ω…
Social Behavior in Bacterial Nanonetworks: Challenges and Opportunities
Monowar Hasan, Ekram Hossain, Sasitharan Balasubramaniam +1
Molecular communication promises to enable communication between nanomachines with a view to increasing their functionalities and open up new possible applications. Due to some of…
Gaussian filtering and variational approximations for Bayesian smoothing in continuous-discrete stochastic dynamic systems
Juha Ala-Luhtala, Simo Särkkä, Robert Piché
The Bayesian smoothing equations are generally intractable for systems described by nonlinear stochastic differential equations and discrete-time measurements. Gaussian approximati…
Sparse source travel-time tomography of a laboratory target: accuracy and robustness of anomaly detection
Sampsa Pursiainen, Mikko Kaasalainen
This study concerned conebeam travel-time tomography. The focus was on a sparse distribution of signal sources that can be necessary in a challenging in situ environment such as in…
Analysis and Augmented Spatial Processing for Uplink OFDMA MU-MIMO Receiver with Transceiver I/Q Imbalance and External Interference
Aki Hakkarainen, Janis Werner, Kapil R. Dandekar +1
We address receiver (RX) signal processing in MIMO systems under in-phase/quadrature (I/Q) imbalance, which causes cross-talk of mirror-subcarriers in OFDM systems. We extend the t…
On the Relation Between the Randomized Extended Kaczmarz Algorithm and Coordinate Descent
Bogdan Dumitrescu
In this note we compare the randomized extended Kaczmarz (EK) algorithm and randomized coordinate descent (CD) for solving the full-rank overdetermined linear least-squares problem…
Computing Minimum Rainbow and Strong Rainbow Colorings of Block Graphs
Melissa Keranen, Juho Lauri
A path in an edge-colored graph is rainbow if no two edges of it are colored the same. The graph is rainbow-connected if there is a rainbow path between every pair of verti…
Reference Receiver Based Digital Self-Interference Cancellation in MIMO Full-Duplex Transceivers
Dani Korpi, Lauri Anttila, Mikko Valkama
In this paper we propose and analyze a novel self-interference cancellation structure for in-band MIMO full-duplex transceivers. The proposed structure utilizes reference receiver…
Further Hardness Results on Rainbow and Strong Rainbow Connectivity
Juho Lauri
A path in an edge-colored graph is \textit{rainbow} if no two edges of it are colored the same. The graph is said to be \textit{rainbow connected} if there is a rainbow path betwee…
Numerical path integral approach to quantum dynamics and stationary quantum states
Ilkka Ruokosenmäki, Tapio T. Rantala
Applicability of Feynman path integral approach to numerical simulations of quantum dynamics in real time domain is examined. Coherent quantum dynamics is demonstrated with one dim…
The Puzzling Mutual Orbit of the Binary Trojan Asteroid (624) Hektor
F. Marchis, J. Durech, J. Castillo-Rogez +9
Asteroids with satellites are natural laboratories to constrain the formation and evolution of our solar system. The binary Trojan asteroid (624) Hektor is the only known Trojan as…
Canonical methods of constructing invariant tori by phase-space sampling
Teemu Laakso, Mikko Kaasalainen
Invariant tori in phase space can be constructed via a nonperturbative canonical transformation applied to a known integrable Hamiltonian H. Hitherto, this process has been carried…
A Simple Character String Proof of the "True but Unprovable" Version of Gödel's First Incompleteness Theorem
Antti Valmari
A rather easy yet rigorous proof of a version of Gödel's first incompleteness theorem is presented. The version is "each recursively enumerable theory of natural numbers with 0, 1,…
Widely-Linear Digital Self-Interference Cancellation in Direct-Conversion Full-Duplex Transceiver
Dani Korpi, Lauri Anttila, Ville Syrjälä +1
This article addresses the modeling and cancellation of self-interference in full-duplex direct-conversion radio transceivers, operating under practical imperfect radio frequency (…
Mixing and segregation of ring polymers: spatial confinement and molecular crowding effects
Jaeoh Shin, Andrey G Cherstvy, Ralf Metzler
During the life cycle of bacterial cells the non-mixing of the two ring-shaped daughter genomes is an important prerequisite for the cell division process. Mimicking the environmen…
First passage statistics for aging diffusion in annealed and quenched disorder
Henning Kruesemann, Aljaz Godec, Ralf Metzler
Aging, the dependence of the dynamics of a physical process on the time since its original preparation, is observed in systems ranging from the motion of charge carriers in a…
Analysis of Oscillator Phase-Noise Effects on Self-Interference Cancellation in Full-Duplex OFDM Radio Transceivers
Ville Syrjala, Mikko Valkama, Lauri Anttila +2
This paper addresses the analysis of oscillator phase-noise effects on the self-interference cancellation capability of full-duplex direct-conversion radio transceivers. Closed-for…
Advanced Self-interference Cancellation and Multiantenna Techniques for Full-Duplex Radios
Dani Korpi, Sathya Venkatasubramanian, Taneli Riihonen +7
In an in-band full-duplex system, radios transmit and receive simultaneously in the same frequency band at the same time, providing a radical improvement in spectral efficiency ove…
Optical Rogue Waves in Whispering-Gallery-Mode Resonators
Aurélien Coillet, John Dudley, Goery Genty +2
We report a theoretical study showing that rogue waves can emerge in whispering gallery mode resonators as the result of the chaotic interplay between Kerr nonlinearity and anomalo…
Full-Duplex Transceiver System Calculations: Analysis of ADC and Linearity Challenges
Dani Korpi, Taneli Riihonen, Ville Syrjälä +3
Despite the intensive recent research on wireless single-channel full-duplex communications, relatively little is known about the transceiver chain nonidealities of full-duplex dev…