Results 41 to 50 of about 1,259,174 (207)
HELIOS ‐ Highly rEliable Links durIng sOlar conjunctionS
Radio Science, Volume 61, Issue 8, August 2026.Abstract During deep space missions, maintaining reliable communication between a spacecraft and Earth becomes particularly challenging during superior solar conjunctions, when the spacecraft passes behind the Sun relative to Earth. The highly ionized solar corona and solar wind create plasma inhomogeneities that severely affect radio signals, leading ...
A. Zeqaj +8 more
wiley +1 more source
Slow Frequency-Hopping Multicarrier DS-CDMA for Transmission over Nakagami Multipath Fading Channels
, 2001 A novel multiple access scheme based on slow frequency hopping multicarrier direct-sequence code division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrowband CDMA ...
Yang, L-L., Hanzo, L.
core +1 more source
Analysis of Coded FHSS Systems with Multiple Access Interference over Generalized Fading Channels
EURASIP Journal on Wireless Communications and Networking, 2008 We study the effect of interference on the performance of coded FHSS systems. This is achieved by modeling the physical channel in these systems as a block fading channel.
Zummo SalamA
doaj
Achievable Rates for Full-Duplex Massive MIMO Systems Over Rician Fading Channels
IEEE Access, 2018 We study the uplink and downlink achievable rate of full-duplex large-scale multi-input multioutput (MIMO) systems with a base station (BS) and users over Rician fading channels, based on maximum ratio combining/maximum ratio transmission and zero ...
Juan Liu +4 more
doaj +1 more source
Radio Science, Volume 61, Issue 8, August 2026.Abstract This paper explores the impact of natural phenomena on signal data transmission across various ionospheric communication channels. The study focuses on three primary phenomena: meteor trails prevalent in the middle‐ and lower‐latitude ionosphere, bubble and plume structures observed around the equatorial ionosphere, and magnetic‐storm‐induced ...
I. Bronfman +2 more
wiley +1 more source
DronesThis paper proposes a drone-assisted NOMA communication system equipped with a reconfigurable intelligent surface (RIS). Given the Line-of-Sight nature of the Air-to-Ground link, a more realistic Rician fading environment is chosen for the study of ...
Suoping Li +3 more
doaj +1 more source
Analysis of Three-Dimensional Spatial Selectivity for Rician Channel [PDF]
Radioengineering, 2018 The spatial selectivity of multipath fading determines the spatial diversity strategy to increase the performance of the communication system. This paper analyses the three-dimensional (3-D) spatial selectivity of Rician channel to strive to alleviate ...
D. Du, X. Zeng, X. Jian, F. Yu, L. Miao
doaj
Optimized Joint Relay and Antenna Selection for Enhanced Full‐Duplex Relay Networks
Engineering Reports, Volume 8, Issue 7, July 2026.This study proposes a joint relay and antenna selection strategy for full‐duplex amplify‐and‐forward relay networks. By adaptively optimizing transmitter–receiver configurations based on channel conditions, the method reduces self‐interference, lowers outage probability, and symbol error rate, and enhances spectral efficiency, offering a scalable ...
Deepika Rani Sona +3 more
wiley +1 more source
Journal of Telecommunications and Information Technology, 2019 In this paper, the product of three random variables (RVs) will be considered. Distribution of the product of independent random variables is very important in many applied problems, including wireless relay telecommunication systems.
Dragana S. Krstic +4 more
doaj +1 more source
Calculating the probability of error per symbol on the basis of MGF method using Rician fading for MFSK [PDF]
Tehnika, 2014 In this paper is presented how to calculate the probability of error per symbol of M-ary non-coherent frequency modulation (M-ary Frequency Shift Keying, MFSK) over a slow, flat, identically independently distributed Rician fading channels.
Mitić Dragan S. +2 more
doaj +1 more source