740 citations
- University of OsloNO39 papers
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6 papers · 1 filter
Spectrum and Energy Efficiency Evaluation of Two-Tier Femtocell networks With Partially Open Channels
Xiaohu Ge, Tao Han, Yan Zhang +5
Two-tier femtocell networks is an efficient communication architecture that significantly improves throughput in indoor environments with low power consumption. Traditionally, a fe…
Adaptive Finite Element Solution of Multiscale PDE-ODE Systems
A. Johansson, J. H. Chaudry, V. Carey +4
We consider adaptive finite element methods for solving a multiscale system consisting of a macroscale model comprising a system of reaction-diffusion partial differential equation…
A Stabilized Cut Finite Element Method for the Three Field Stokes Problem
Erik Burman, Susanne Claus, André Massing
We propose a Nitsche-based fictitious domain method for the three field Stokes problem in which the boundary of the domain is allowed to cross through the elements of a fixed backg…
A Semiblind Two-Way Training Method for Discriminatory Channel Estimation in MIMO Systems
Junjie Yang, Shengli Xie, Xiangyun Zhou +2
Discriminatory channel estimation (DCE) is a recently developed strategy to enlarge the performance difference between a legitimate receiver (LR) and an unauthorized receiver (UR)…
Minimization of multi-penalty functionals by alternating iterative thresholding and optimal parameter choices
Valeriya Naumova, Steffen Peter
Inspired by several recent developments in regularization theory, optimization, and signal processing, we present and analyze a numerical approach to multi-penalty regularization i…
-error estimates for finite element approximations of boundary fluxes
Mats G. Larson, Andre Massing
We prove quasi-optimal a priori error estimates for finite element approximations of boundary normal fluxes in the -norm. Our results are valid for a variety of different sche…