Results 61 to 70 of about 90,945 (202)
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
Distributed Space-Time Block Code over Mixed Rayleigh and Rician Frequency-Selective Fading Channels
EURASIP Journal on Wireless Communications and Networking, 2010 This paper proposes a new distributed space-time block code (DSTBC) over frequency-selective fading channels for two-hop amplify and forward relay networks, consisting of a source node (S), two relay nodes (R1 and R2), and a destination node (D).
Quoc-Tuan Vien +2 more
doaj +1 more source
Performance analysis of energy detection over hyper-Rayleigh fading channels
The Journal of Engineering, 2015 This study investigates the performance of energy detection (ED)-based spectrum sensing over two-wave with diffused power (TWDP) fading channels, which have been found to provide accurate characterisation for a variety of fading conditions. A closed-form
Eleftherios Chatziantoniou +2 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
A Tractable Fading Channel Model With Two-Sided Bimodality
IEEE Access, 2019 This paper presents the alternate Rician shadowed (ARS) fading model, a new statistical channel model that consists of two fluctuating specular components of which only one is active at a time.
Unai Fernandez-Plazaola +3 more
doaj +1 more source
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
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
Journal of Magnetic Resonance Imaging, Volume 64, Issue 1, Page 184-200, July 2026.ABSTRACT Background Intravoxel incoherent motion (IVIM) analysis of diffusion‐weighted MRI (DWI) provides microvascular perfusion and diffusion information. However, parameter estimation is limited by noise sensitivity, variability across fitting methods, and lack of standardization.
Misha P. T. Kaandorp +3 more
wiley +1 more source
Bit Error Rate Closed-Form Expressions for LoRa Systems under Nakagami and Rice Fading Channels
Sensors, 2019 We derive exact closed-form expressions for Long Range (LoRa) bit error probability and diversity order for channels subject to Nakagami-m, Rayleigh and Rician fading.
Claudio Ferreira Dias +2 more
doaj +1 more source