Results 91 to 100 of about 337,244 (282)

Enhancing security and novel user-clustering with energy harvesting and coded cooperation in PD-NOMA

Alexandria Engineering Journal
This study introduces a low-complexity, short-code-based strategy that combines energy harvesting for power domain non-orthogonal multiple access (PD-NOMA) techniques.
Asif Mahmood, Bilal Ahmad, Mahnoor Ajmal, Sohaib Bin Altaf Khattak, Sadique Ahmad, Faisel Tubbal, Abdelhamied A. Ateya   +6 more
doaj   +1 more source

Selective Dynamic Coded Cooperative Communications for Multi-Hop Underwater Acoustic Sensor Networks

IEEE Access, 2019
Due to the limitation of acoustic velocity in underwater environments, propagation delay is a horrible problem in multi-hop underwater acoustic sensor networks (UW-ASNs).
Yougan Chen, Xiaoting Jin, Lei Wan, Xiaokang Zhang, Xiaomei Xu   +4 more
doaj   +1 more source

Adaptive Randomized Distributed Space-Time Coding in Cooperative MIMO Relay Systems

, 2012
An adaptive randomized distributed space-time coding (DSTC) scheme and algorithms are proposed for two-hop cooperative MIMO networks. Linear minimum mean square error (MMSE) receivers and an amplify-and-forward (AF) cooperation strategy are considered ...
de Lamare, R. C., Peng, T., Schmeink, A.
core  

3D‐Printed Hygroscopic Polymer Networks for High‐Humidity Triboelectric Nanogenerators to Wirelessly Power Implantable Electronic Devices‐ A Conceptual Pathway

Advanced Functional Materials, EarlyView.
This work develops 3D‐printable tribopolymer networks that can enhance triboelectric performance under high humidity environments. Polar hydrophilic functional groups and incorporation of zwitterionic monomers promote bound‐water–dominated interfacial polarization thereby increasing electrical outputs.
Linguangze Zhuo, Jiawang Zeng, Qian Chen, Valentin A. Bobrin, Deepak Mishra, Anthony Chun Yin Yuen, Yixia Zhang, Cyrille Boyer, Jin Zhang   +8 more
wiley   +1 more source

Finite-SNR analysis for partial relaying cooperation with channel coding and opportunistic relay selection

EURASIP Journal on Advances in Signal Processing, 2017
This work studies the performance of a cooperative network which consists of two channel-coded sources, multiple relays, and one destination. To achieve high spectral efficiency, we assume that a single time slot is dedicated to relaying.
Thang X. Vu, Pierre Duhamel, Symeon Chatzinotas, Bjorn Ottersten   +3 more
doaj   +1 more source

Signal-Aligned Network Coding in K-User MIMO Interference Channels with Limited Receiver Cooperation

, 2018
In this paper, we propose a signal-aligned network coding (SNC) scheme for K-user time-varying multiple-input multiple-output (MIMO) interference channels with limited receiver cooperation.
Chan, Tse-Tin, Lok, Tat-Ming
core  

Gaussian Broadcast Channels with an Orthogonal and Bidirectional Cooperation Link [PDF]

, 2010
This paper considers a system where one transmitter broadcasts a single common message to two receivers linked by a bidirectional cooperation channel, which is assumed to be orthogonal to the downlink channel.
Belmega, E. V., Djeumou, B., Lasaulce, S.   +2 more
core  

Flash Assembloids: A Rapid Biofabrication of a Platform for Modeling Early Glioblastoma Invasion at the Glioblastoma–Brain Organoid Interfaces

Advanced Healthcare Materials, EarlyView.
This study presents a bioengineered assembloid (ASM) system combining glioblastoma (GBM) cells in oxidized alginate (OA) microgels with dorsal organoids (DOs). This model simulates brain tumor‐host interactions, revealing enhanced GBM invasion, altered gene expression, and aggressive infiltration patterns, demonstrating ASM as a valuable platform for ...
Chao Liang, Henry Robert Howard, Shihui Chen, Won‐Young Choi, Summer Cao, Arthur Chien, Kevin Zou, Michael Kassiou, Fabien Delerue, Ho Sang Jung, Yeonju Park, Young Mee Jung, Yong‐Dae Kwon, Karrie M. Kiang, Gilberto Ka‐Kit Leung, Ryohichi Sugimura, Ann‐Na Cho, Sang Jin Lee   +17 more
wiley   +1 more source

Distributed GRS‐coded differential spatial modulation for half‐duplex cooperative network based on relay optimization and joint decoding

IET Communications
To ensure the reliable transmission with increased spectral efficiency of the small information block, this article proposes the novel distributed generalized Reed‐Solomon coded differential spatial modulation (DGRSC‐DSM) scheme in the relay cooperation ...
Chen Chen, Fengfan Yang
doaj   +1 more source

UAV-Assisted Superposition Coded Cooperation: Hybrid Relaying and Nakagami- m Channel for UL/DL

IEEE Access
In future wireless communication systems reliability and throughput are the major concern for the users in an infrastructure less scenarios. These requirements are fulfill by the unmanned aerial vehicle (UAV)-assisted superposition coded cooperation (UA ...
Pankaj Kumar, Nikita Goel, Manoj Tolani, Santhosha Kamath   +3 more
doaj   +1 more source