Strong Gaussian approximation for cumulative processes
Sign Up to like & getrecommendations! Published in 2022 at "Stochastic Processes and their Applications"
DOI: 10.1016/j.spa.2022.04.003
Abstract: We establish optimal logarithmic rates of convergence in the strong invariance principle for multivariate cumulative processes in the Smith's sense. Exponential probabilistic inequalities of Komlos-Major-Tusnady type are obtained. Provided examples include applications to stopped sums… read more here.
Keywords: strong gaussian; approximation cumulative; gaussian approximation; cumulative processes ... See more keywords
Screw dislocation structure and mobility in body centered cubic Fe predicted by a Gaussian Approximation Potential
Sign Up to like & getrecommendations! Published in 2018 at "npj Computational Materials"
DOI: 10.1038/s41524-018-0125-4
Abstract: The plastic flow behavior of bcc transition metals up to moderate temperatures is dominated by the thermally activated glide of screw dislocations, which in turn is determined by the atomic-scale screw dislocation core structure and… read more here.
Keywords: approximation potential; gaussian approximation; screw dislocation; structure ... See more keywords
Doped expectation propagation for low-complexity message passing based detection
Sign Up to like & getrecommendations! Published in 2017 at "Electronics Letters"
DOI: 10.1049/el.2016.3467
Abstract: Expectation propagation (EP) has been used for Gaussian approximation of discrete-valued symbols to achieve low-complexity message passing based detection. It has been shown that EP-based Gaussian approximation significantly outperforms the direct Gaussian approximation. A doped… read more here.
Keywords: message; approximation; complexity message; expectation propagation ... See more keywords
Frozen Gaussian approximation for 3D seismic tomography
Sign Up to like & getrecommendations! Published in 2018 at "Inverse Problems"
DOI: 10.1088/1361-6420/aab2be
Abstract: Three-dimensional (3D) wave-equation-based seismic tomography is computationally challenging in large scales and high-frequency regime. In this paper, we apply the frozen Gaussian approximation (FGA) method to compute 3D sensitivity kernels and seismic tomography of high-frequency.… read more here.
Keywords: time; seismic tomography; gaussian approximation; tomography ... See more keywords
Gaussian Approximation-Based Belief Propagation Receiver for Uplink SCMA Systems With Imperfect CSIR
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2018.2874441
Abstract: For uplink sparse code multiple access (SCMA) systems, a channel estimation is required to support a multi-user detection in practice. Motivated by the conventional detection, called a Gaussian approximation-based belief propagation (GA-BP) with matched filtering,… read more here.
Keywords: based belief; belief propagation; gaussian approximation; receiver ... See more keywords
Partial Gaussian-Approximation Soft Demapper for the Core Layer of MIMO-LDM in ATSC 3.0
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Broadcasting"
DOI: 10.1109/tbc.2021.3105029
Abstract: In this paper, we propose a new partial Gaussian approximation (PGA) soft demapper for the core layer (CL) signal in the multiple-input-multiple-output layered-division-multiplexing (MIMO-LDM) of ATSC 3.0 systems. Unlike a conventional GA demapper, where enhanced… read more here.
Keywords: partial gaussian; mimo; demapper; demapper core ... See more keywords