Results 51 to 60 of about 3,446,761 (242)
Performance Analysis for User-Centric Dense Networks With mmWave
IEEE Access, 2019 This paper focuses on the coverage probability and ergodic capacity for millimeter wave (mmWave) user-centric dense networks, where multiple access points (APs) consist of a virtual cell for each user equipment and transmit data with mmWave antennas ...
Jianfeng Shi +3 more
doaj +1 more source
On Ergodic Capacity and Optimal Number of Tiers in UAV-Assisted Communication Systems [PDF]
IEEE Transactions on Vehicular Technology, 2018 In this paper, we consider unmanned aerial vehicle (UAV) assisted communication systems, where a number of UAVs are utilized as multi-tier relays between a number of users and a base-transceiver station (BTS).
Sha Hu
semanticscholar +1 more source
Ergodic capacity for fading channels in cognitive radio networks [PDF]
2018 4th International Conference on Advanced Technologies for Signal and Image Processing (ATSIP), 2018 In this paper, we consider a Cognitive Radio (CR) system where two type of users try to access to the primary spectrum : a primary user (PU) owning the spectrum license and a secondary user (SU) who does not own the spectrum license. However, the secondary communication is allowed to coexist with the primary communication as long as the interference ...
openaire +2 more sources
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This study employed an adaptive iterative strategy combining machine learning algorithms, domain knowledge, experimental design, and experimental feedback to aim to precisely and quickly discover high‐entropy ceramics with excellent energy storage performance.
Haowen Liu +4 more
wiley +1 more source
A Fair Power Allocation Approach to NOMA in Multi-user SISO Systems
, 2017 A non-orthogonal multiple access (NOMA) approach that always outperforms orthogonal multiple access (OMA) called Fair-NOMA is introduced. In Fair-NOMA, each mobile user is allocated its share of the transmit power such that its capacity is always greater
Oviedo, Jose Armando +1 more
core +1 more source
Ergodic Capacity Analysis of Wireless Powered AF Relaying Systems over alpha-µ Fading Channels [PDF]
Global Communications Conference, 2017 In this paper, we consider a two-hop amplify-and- forward (AF) relaying system, where the relay node is energy-constrained and harvests energy from the source node.
G. Nauryzbayev +3 more
semanticscholar +1 more source
Small Methods, EarlyView.A/B‐site co‐doping combined with templated grain growth enables synergistic defect and domain engineering in textured PIN–PMN–PT ceramics. The approach simultaneously enhances piezoelectric response and mechanical quality factor, achieving a balanced soft–hard characteristic.
Minwoo Kim +13 more
wiley +1 more source
Upper and Lower Bounds for the Ergodic Capacity of MIMO Jacobi Fading Channels [PDF]
Optics Express, 2017 In multi-(core/mode) optical fiber communication, the transmission channel can be modeled as a complex sub-matrix of the Haar-distributed unitary matrix (complex Jacobi unitary ensemble). In this letter, we present new analytical expressions of the upper
A. Nafkha, Rémi Bonnefoi
semanticscholar +1 more source
Time‐resolved XPCS analysis across broad time‐scales using multi‐tau two‐time correlations
Journal of Synchrotron Radiation, EarlyView.A scalable multi‐tau two‐time correlation framework enables efficient, time‐resolved XPCS analysis of long duration high‐frame‐rate modern synchrotron data while preserving sensitivity to non‐stationary dynamics.We present a multi‐tau two‐time correlation (MT‐2TC) analysis for X‐ray photon correlation spectroscopy that enables efficient analysis of ...
Fabio Brugnara +13 more
wiley +1 more source
IET Communications, 2021 Intelligent reflecting surface (IRS) is a new concept originating from metamaterials, which can achieve beamforming through controllable passive reflecting.
Jian Dang +8 more
doaj +1 more source