Analytical Approximation for Capacity in Massive MIMO Systems
Sign Up to like & getrecommendations! Published in 2017 at "Wireless Personal Communications"
DOI: 10.1007/s11277-017-4737-7
Abstract: In most existing research on massive multiple-input multiple-output (MIMO) systems, theoretical analysis relies on the assumption that the number of antennas at the base station is infinite. Under this assumption, channel vectors for different users… read more here.
Keywords: analytical approximation; massive mimo; channel; capacity massive ... See more keywords
Analytical approximation of the site percolation thresholds for monomers and dimers on two-dimensional lattices
Sign Up to like & getrecommendations! Published in 2019 at "Physica A: Statistical Mechanics and its Applications"
DOI: 10.1016/j.physa.2018.10.023
Abstract: Abstract In this paper, a theoretical approach to calculate site percolation thresholds on two-dimensional lattices is proposed. The method, based on exact counting of configurations on finite cells, arises as a generalization of the analytical… read more here.
Keywords: dimensional lattices; analytical approximation; site percolation; percolation thresholds ... See more keywords
Einstein-scalar–Gauss-Bonnet black holes: Analytical approximation for the metric and applications to calculations of shadows
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.044054
Abstract: Recently, numerical solutions to the field equations of Einstein-scalar--Gauss-Bonnet (EsGB) gravity that correspond to black holes with nontrivial scalar hair have been reported. Here, we employ the method of the continued-faction expansion in terms of… read more here.
Keywords: black holes; scalar gauss; einstein scalar; analytical approximation ... See more keywords
Closed-form solutions for the Lévy-stable distribution.
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review E"
DOI: 10.1103/physreve.98.012103
Abstract: The Lévy-stable distribution is the attractor of distributions which hold power laws with infinite variance. This distribution has been used in a variety of research areas; for example, in economics it is used to model… read more here.
Keywords: analytical approximation; function; uniform solution; stable distribution ... See more keywords
Analytical approximation of the second-harmonic conversion efficiency.
Sign Up to like & getrecommendations! Published in 2020 at "Applied optics"
DOI: 10.1364/ao.404993
Abstract: The second-harmonic generation process of a focused laser beam inside a nonlinear crystal is described by the Boyd-Kleinman theory. Calculating the actual conversion efficiency and upconverted power requires the solution to a double integral that… read more here.
Keywords: conversion efficiency; second harmonic; approximation second; analytical approximation ... See more keywords