Results 141 to 150 of about 32,936 (311)
Performance of Antenna Diversity with Turbo Trellis Coded Modulation Over Nakagami Channels
Electrica, 2019 In this paper, we will use the Space Time Block codes for antenna diversity, and the performance of Space-Time – Turbo Trellis Coded Modulation (ST-TTCM) is investigated over Nakagami channels.
Onur OSMAN
doaj +2 more sources
Space-Time Codes for Wireless Optical Communications
EURASIP Journal on Advances in Signal Processing, 2002 A space-time channel coding technique is presented for overcoming turbulence-induced fading in an atmospheric optical heterodyne communication system that uses multiple transmit and receive apertures. In particular, a design criterion for minimizing the
Tarokh Vahid +2 more
doaj +1 more source
Chiral Phase Change Nanomaterials
Advanced Functional Materials, EarlyView.This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow +11 more
wiley +1 more source
Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-m Fading Channels. [PDF]
Sensors (Basel), 2022 Nguyen TT, Nguyen SQ, Nguyen PX, Kim YH.
europepmc +1 more source
Advanced Functional Materials, EarlyView.A nanounit‐assembled hydrogel employing a “pull‐and‐push” strategy simultaneously scavenges pro‐inflammatory cell‐free DNA (cfDNA) and delivers regenerative therapeutics in response to burn‐induced hyperthermia. By repolarizing macrophages and promoting angiogenesis, this multifunctional platform accelerates burn wound healing, offering a blueprint for
Han‐Sem Kim +9 more
wiley +1 more source
Serial Acquisition of DS-CDMA Signals in Multipath Fading Mobile Channels
, 2001 This paper compares the mean acquisition time (MAT) performance of two serial search acquisition schemes over frequency-selective multipath Rayleigh fading channels.
Yang, L-L., Hanzo, L.
core
On the Performance Analysis of Switched Diversity Combining Receivers over Fisher-Snedecor ℱ Composite Fading Channels. [PDF]
Sensors (Basel), 2021 Cheng W, Wang X, Ma T, Wang G.
europepmc +1 more source
Advanced Functional Materials, EarlyView.Top‐down organic pillaring expands the interlayer spacing of bulk‐sized MoS2 particles while preserving the bulk morphology. Operando X‐ray diffraction and electrochemical dilatometry show that MoS2‐bulk undergoes solvent co‐intercalation in diglyme electrolyte, causing large structural expansion, while pillared, expanded MoS2 suppresses solvent uptake
Jaehoon Choi +8 more
wiley +1 more source
Estimating wideband bit error rates using pilot tone envelope fading statistics
, 1993 In this paper a number of techniques are investigated for predicting the performance of a digital system in fading channels. A method is presented which combines both bit error rate simulation and site-specific channel characterisation using ray tracing ...
Nix, AR, Anderson, HR, McGeehan, JP
core
Advanced Functional Materials, EarlyView.Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo +8 more
wiley +1 more source