Results 31 to 40 of about 3,430 (173)

Ergodic Capacity Analysis of Decode-and-Forward Relay-Assisted FSO Systems Over Alpha–Mu Fading Channels Considering Pointing Errors

open access: yesIEEE Photonics Journal, 2016
The ergodic capacity of decode-and-forward (DF) relay-assisted free-space optical (FSO) communication systems when line of sight is available is analyzed over gamma–gamma fading channels with pointing errors.
Ruben Boluda-Ruiz   +3 more
doaj   +1 more source

CD112 Lactylation Drives Dual Immune Evasion From CD8+ T Cells and NK Cells

open access: yesAdvanced Science, EarlyView.
AARS2 functions as an intracellular lactate sensor and lactyltransferase, catalyzing CD112 K412 lactylation to block ubiquitination‐dependent degradation and stabilize CD112. This pathway suppresses CD8+ T‐cell and NK‐cell cytotoxicity, enabling dual immune evasion.
Zhuoshuo Xu   +6 more
wiley   +1 more source

The Reliability Research of DF-D2D Underlaying Cellular Networks

open access: yesAdvances in Electrical and Computer Engineering, 2014
In this paper, we propose a novel Device-to-Device (D2D) communication model, i.e., DF-D2D where the D2D communication is aided by a relay using the decode-and-forward (DF) strategy.
HUAN, C., LIU, C.
doaj   +1 more source

Capacity Bounds and Mapping Design for Binary Symmetric Relay Channels

open access: yesEntropy, 2012
Capacity bounds for a three-node binary symmetric relay channel with orthogonal components at the destination are studied. The cut-set upper bound and the rates achievable using decode-and-forward (DF), partial DF and compress-and-forward (CF) relaying ...
Majid Nasiri Khormuji, Mikael Skoglund
doaj   +1 more source

Broadband Near‐Field Computational Microwave Imaging Enabled by Nonperiodic Dispersive Unit‐Cell Loading in a Passive Metasurface

open access: yesAdvanced Electronic Materials, EarlyView.
A compact passive engineered surface converts changes in microwave frequency into many distinct illumination patterns, allowing nearby objects to be imaged without mechanical scanning, active tuning, or a large antenna array. Operating from 18 to 28 GHz, the single‐port system uses measured field patterns to reconstruct metallic targets and distinguish
Mohammed H. Arif   +6 more
wiley   +1 more source

Adaptive Modulation for Opportunistic Decode-and-Forward Relaying

open access: yes, 2020
Orthogonal relay based cooperative communication enjoys distributed spatial diversity gain at the price of spectral efficiency. This work aims at improving the spectral efficiency for orthogonal opportunistic decode-and-forward (DF) relaying through ...
Tafazolli, R   +3 more
core   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

Sustainability Orientation and Sustainable Innovation: Can Organisational Resilience Clarify the Missing Link?

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Although firms that integrate a sustainability orientation (SO) may experience a significant improvement in their resource efficiency, many, particularly small‐ and medium‐sized enterprises (SMEs), still struggle with the complexities of incorporating sustainability into their business models.
Michael Adu Kwarteng   +3 more
wiley   +1 more source

Successive-relaying-aided decode-and-forward coherent versus noncoherent cooperative multicarrier space–time shift keying

open access: yes, 2013
—Successive-relaying-aided (SR) cooperative multi-carrier (MC) space–time shift keying (STSK) is proposed for frequency-selective channels. We invoke SR to mitigate the typical 50% throughput loss of conventional half-duplex relaying schemes and MC code ...
Li, Li   +3 more
core   +1 more source

Digital Product Passport as a Transparency Tool for Sustainable Fashion Retailing: Benefits, Barriers, and Strategic Implications

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Transparency is increasingly recognized as a critical factor in advancing the sustainability of production processes and products, particularly in fashion retailing. In response, the European Union is developing standardized transparency mechanisms, most notably the Digital Product Passport (DPP).
Virginia Fani   +3 more
wiley   +1 more source

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