247 citations · 260 across the 4 of their papers we have counts for
10 papers
Improved Coefficients for the Karagiannidis-Lioumpas Approximations and Bounds to the Gaussian Q-Function
Islam M. Tanash, Taneli Riihonen
We revisit the Karagiannidis-Lioumpas (KL) approximation of the Q-function by optimizing its coefficients in terms of absolute error, relative error and total error. For minimizing…
Waveforms and End-to-End Efficiency in RF Wireless Power Transfer Using Digital Radio Transmitter
Nachiket Ayir, Taneli Riihonen, Markus Allén +1
We study radio-frequency (RF) wireless power transfer (WPT) using a digital radio transmitter for applications where alternative analog transmit circuits are impractical. An import…
Stochastic Analysis of Satellite Broadband by Mega-Constellations with Inclined LEOs
Niloofar Okati, Taneli Riihonen
As emerging massive constellations are intended to provide seamless connectivity for remote areas using hundreds of small low Earth orbit (LEO) satellites, new methodologies have g…
Global Minimax Approximations and Bounds for the Gaussian Q-Function by Sums of Exponentials
Islam M. Tanash, Taneli Riihonen
This paper presents a novel systematic methodology to obtain new simple and tight approximations, lower bounds, and upper bounds for the Gaussian Q-function, and functions thereof,…
Downlink Coverage and Rate Analysis of Low Earth Orbit Satellite Constellations Using Stochastic Geometry
Niloofar Okati, Taneli Riihonen, Dani Korpi +2
As low Earth orbit (LEO) satellite communication systems are gaining increasing popularity, new theoretical methodologies are required to investigate such networks' performance at…
PAPR Reduction with Mixed-Numerology OFDM
Selahattin Gökceli, Toni Levanen, Juha Yli-Kaakinen +3
High peak-to-average power ratio (PAPR) is a critical problem in orthogonal frequency-division multiplexing (OFDM). The fifth-generation New Radio (5G NR) facilitates the utilizati…