Results 41 to 50 of about 180,313 (330)
A Novel Quantize-and-Forward Cooperative System: Channel Estimation and M-PSK Detection Performance
EURASIP Journal on Wireless Communications and Networking, 2010 A method to improve the reliability of data transmission between two terminals without using multiple antennas is cooperative communication, where spatial diversity is introduced by the presence of a relay terminal. The Quantize and Forward (QF) protocol
Iancu Avram +3 more
doaj +2 more sources
Applied Sciences, 2023 In this paper, we consider a coded cooperative communication network with multiple energy-harvesting (EH) relays. In order to adequately address the problem of error propagation due to the erroneous decoding at the relays, as in the case of conventional ...
Slim Chaoui +4 more
doaj +1 more source
Bilayer Protograph Codes for Half-Duplex Relay Channels [PDF]
, 2013 Despite encouraging advances in the design of relay codes, several important challenges remain. Many of the existing LDPC relay codes are tightly optimized for fixed channel conditions and not easily adapted without extensive re-optimization of the code.
Divsalar, Dariush +2 more
core +3 more sources
Lower bounds on the estimation performance in low complexity quantize-and-forward cooperative systems [PDF]
, 2015 Cooperative communication can effectively mitigate the effects of multipath propagation fading by using relay channels to provide spatial diversity. A relaying scheme suitable for half-duplex devices is the quantize-and-forward (QF) protocol, in which ...
Aerts, Nico +2 more
core +2 more sources
Full-Duplex Relay with Delayed CSI Elevates the SDoF of the MIMO X Channel
Entropy, 2021 In this article, the sum secure degrees-of-freedom (SDoF) of the multiple-input multiple-output (MIMO) X channel with confidential messages (XCCM) and arbitrary antenna configurations is studied, where there is no channel state information (CSI) at two ...
Tong Zhang +3 more
doaj +1 more source
Study of Gaussian Relay Channels with Correlated Noises
, 2010 In this paper, we consider full-duplex and half-duplex Gaussian relay channels where the noises at the relay and destination are arbitrarily correlated. We first derive the capacity upper bound and the achievable rates with three existing schemes: Decode-
Cui, Shuguang +3 more
core +1 more source
Memoryless relay strategies for two-way relay channels [PDF]
IEEE Transactions on Communications, 2009 We propose relaying strategies for uncoded two-way relay channels, where two terminals transmit simultaneously to each other with the help of a relay. In particular, we consider a memoryless system, where the signal transmitted by the relay is obtained by applying an instantaneous relay function to the previously received signal.
Cui, Tao, Ho, Tracey, Kliewer, Jörg
openaire +2 more sources
Advanced Functional Materials, EarlyView.Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He +5 more
wiley +1 more source
Relay Broadcast Channel With Confidential Messages
IEEE Transactions on Information Forensics and Security, 2016 Accepted by IEEE Transactions on Information Forensic and ...
Dai, Bin, Yu, Linman, Ma, Zheng
openaire +2 more sources
Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna
Advanced Functional Materials, EarlyView.We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz +9 more
wiley +1 more source