Results 21 to 30 of about 12,550 (261)
CORDIC-Based General Multiple Fading Generator for Wireless Channel Digital Twin
Sensors, 2023 A wireless channel digital twin is a useful tool to evaluate the performance of a communication system at the physical or link level by generating the physical channel controllably.
Chen Fang +6 more
doaj +1 more source
On the Secrecy Capacity of Fading Channels [PDF]
2007 IEEE International Symposium on Information Theory, 2007 We consider the secure transmission of information over an ergodic fading channel in the presence of an eavesdropper. Our eavesdropper can be viewed as the wireless counterpart of Wyner's wiretapper. The secrecy capacity of such a system is characterized under the assumption of asymptotically long coherence intervals. We first consider the full Channel
Praveen Kumar Gopala +2 more
openaire +3 more sources
Filter-Based Fading Channel Modeling
Modelling and Simulation in Engineering, 2012 A channel simulator is an essential component in the development and accurate performance evaluation of wireless systems. A key technique for producing statistically accurate fading variates is to shape the flat spectrum of Gaussian variates using ...
Amirhossein Alimohammad +2 more
doaj +1 more source
On Channel Estimation for OFDM/TDM Using MMSE-FDE in a Fast Fading Channel
EURASIP Journal on Wireless Communications and Networking, 2009 MMSE-FDE can improve the transmission performance of OFDM combined with time division multiplexing (OFDM/TDM), but knowledge of the channel state information and the noise variance is required to compute the MMSE weight.
Gacanin Haris, Adachi Fumiyuki
doaj +2 more sources
Improved Pilot-Aided Channel Estimation for MIMO-OFDM Fading Channels
International Journal of Antennas and Propagation, 2013 An improved pilot-aided channel estimation scheme is proposed to enhance the channel estimation accuracy of multiple-input multiple-output-orthogonal frequency division multiplexing (MIMO-OFDM) fading channels. Based on the adaptive path number selection
J. Mar, Chi-Cheng Kuo, M. B. Basnet
doaj +1 more source
Binary Fading Interference Channel with No CSIT [PDF]
2014 IEEE International Symposium on Information Theory, 2014 We study the capacity region of the two-user Binary Fading (or Erasure) Interference Channel where the transmitters have no knowledge of the channel state information. We develop new inner-bounds and outer-bounds for this problem. We identify three regimes based on the channel parameters: weak, moderate, and strong interference regimes.
Alireza Vahid +3 more
openaire +2 more sources
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Analysis of Coded FHSS Systems with Multiple Access Interference over Generalized Fading Channels
EURASIP Journal on Wireless Communications and Networking, 2009 We study the effect of interference on the performance of coded FHSS systems. This is achieved by modeling the physical channel in these systems as a block fading channel.
Salam A. Zummo
doaj +1 more source
On the Analysis of Secrecy Outage Probability Using Average Channel Capacity
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020 In this article, we analyze the outage probability of physically secure wireless signal transmission in fading envi-ronments where both primary and eavesdropper channels are subject to generalized fading.
Ferkan Yılmaz
doaj +1 more source
Structure‐forward targeting of claudins with synthetic binders
FEBS Letters, EarlyView.Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley +1 more source