Results 51 to 60 of about 2,086,896 (318)

Structured optical receivers to attain superadditive capacity and the Holevo limit

open access: yes, 2011
When classical information is sent over a quantum channel, attaining the ultimate limit to channel capacity requires the receiver to make joint measurements over long codeword blocks.
C. E. Shannon   +3 more
core   +1 more source

An Iterative Receiver for OFDM With Sparsity-Based Parametric Channel Estimation [PDF]

open access: yes, 2018
In this work we design a receiver that iteratively passes soft information between the channel estimation and data decoding stages. The receiver incorporates sparsity-based parametric channel estimation.
Badiu, Mihai-Alin   +3 more
core   +2 more sources

Exploiting Wireless Channel State Information for Throughput Maximization [PDF]

open access: yesIEEE Transactions on Information Theory, 2004
We consider the problem of scheduling packets over channels with time-varying quality. This problem has received a lot of attention lately in the context of devising methods for providing quality of service in wireless communications. Earlier work dealing with this problem considered two cases.
V. Tsibonis, L. Georgiadis, L. Tassiulas
openaire   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

A Comprehensive Analysis of the Achievable Channel Capacity in $\mathcal{F}$ Composite Fading Channels

open access: yesIEEE Access, 2019
The F composite fading model was recently proposed as an accurate and tractable statistical model for the characterization of the composite fading conditions encountered in realistic wireless communication scenarios.
Seong Ki Yoo   +6 more
doaj   +1 more source

Batteryless Machine-Type Communications With Average Channel State Information Energy Beamforming

open access: yesIEEE Access, 2022
Machine-type communication (MTC) is a key component in 5G and beyond wireless networks, enabling important applications oriented to the industry. In such environments, the limited lifetime of battery-powered solutions becomes a relevant reliability issue.
Rafaela Scaciota   +5 more
doaj   +1 more source

Optimizing Age of Information in Wireless Networks with Perfect Channel State Information

open access: yes, 2018
Age of information (AoI), defined as the time elapsed since the last received update was generated, is a newly proposed metric to measure the timeliness of information updates in a network.
Karaman, Sertac   +2 more
core   +1 more source

Task Oriented Channel State Information Quantization

open access: yes2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2018
In this paper, we propose a new perspective for quantizing a signal and more specifically the channel state information (CSI). The proposed point of view is fully relevant for a receiver which has to send a quantized version of the channel state to the transmitter.
Zou, Hang, Zhang, Chao, Lasaulce, Samson
openaire   +3 more sources

On the Gaussian MIMO Relay Channel With Full Channel State Information [PDF]

open access: yesIEEE Transactions on Signal Processing, 2009
This paper addresses the problem of source and relay transmit covariance optimization on the Gaussian MIMO relay channel with full channel state information (CSI), i.e., assuming perfect knowledge of all channels. For full-duplex relaying, we show that the cut-set bound on capacity can be computed as the solution of a convex problem, thus providing a ...
Simoens S.   +3 more
openaire   +1 more source

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