Results 21 to 30 of about 10,185 (262)

General Switch-and-Stay Combing for Space Diversity over Rayleigh Fading Channels

International Journal of Antennas and Propagation, 2012
Three multibranch switch-and-stay combining (MSSC) schemes are analyzed for Rayleigh fading channels, where different decision statistics for antenna switching (i.e., switch statistic) are used.
Yawgeng A. Chau, Yao-Hua Chen
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, Lifeng Lai, Hesham El Gamal   +2 more
openaire   +3 more sources

Spectrum Sensing for Cognitive Radios With Unknown Noise Variance and Time-variant Fading Channels

IEEE Access, 2017
The unknown noise variance and time-variant fading channels make the spectrum sensing design a challenging task for cognitive radios. Most existing sensing methods suffer from the information uncertainty and can hardly acquire promising performances in ...
Shenghong Li, Mengwei Sun, Ying-Chang Liang, Bin Li, Chenglin Zhao   +4 more
doaj   +1 more source

Information Rates for Channels with Fading, Side Information and Adaptive Codewords

Entropy, 2023
Generalized mutual information (GMI) is used to compute achievable rates for fading channels with various types of channel state information at the transmitter (CSIT) and receiver (CSIR).
Gerhard Kramer
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, Mohammad Ali Maddah-Ali, Amir Salman Avestimehr, Yan Zhu   +3 more
openaire   +2 more sources

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

An integrative numerical method for evaluating Ergodic capacity of multi-user NOMA over faded channels with imperfect-CSI and SIC

e-Prime: Advances in Electrical Engineering, Electronics and Energy
With increased demand for the internet and the Internet of Things (IoT), future wireless communication networks are draw more attention to afford the massive connectivity, capacity, and extensive coverage requirements.
Thaherbasha Shaik, Nageena parveen SD, Hareesh Ayanampudi, Ravindra Dhuli   +3 more
doaj   +1 more source

The microbiome in human skin aging

FEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana, Cornelia Wiegand, Omid Omrani, Mario Fabri   +3 more
wiley   +1 more source

Closed-form Distribution and Analysis of a Combined Nakagami-lognormal Shadowing and Unshadowing Fading Channel

Journal of Telecommunications and Information Technology, 2016
The realistic wireless channels face combined (time shared) Nakagami-lognormal shadowing and unshadowing fading because of time varying nature of radio channel and mobile user.
Rupender Singh, Meenakshi Rawat
doaj   +1 more source

Deconstructing multiantenna fading channels [PDF]

IEEE Transactions on Signal Processing, 2002
Accurate and tractable channel modeling is critical to realizing the full potential of antenna arrays in wireless communications. Current approaches represent two extremes: idealized statistical models representing a rich scattering environment and parameterized physical models that describe realistic scattering environments via the angles and gains ...
openaire   +1 more source