Results 31 to 40 of about 381,897 (285)
A Trajectory-Driven 3D Channel Model for Human Activity Recognition
IEEE Access, 2021 This paper concerns the design, analysis, and simulation of a 3D non-stationary channel model fed with inertial measurement unit (IMU) data. The work in this paper provides a framework for simulating the micro-Doppler signatures of indoor channels for ...
Ahmed Abdelgawwad +2 more
doaj +1 more source
Dispensing with channel estimation: differentially modulated cooperative wireless communications
, 2011 As a benefit of bypassing the potentially excessive complexity and yet inaccurate channel estimation, differentially encoded modulation in conjunction with low-complexity noncoherent detection constitutes a viable candidate for user-cooperative systems ...
Hanzo, Lajos, Wang, Li
core +1 more source
Adaptive MIMO OFDMA for future generation cellular systems in a realistic outdoor environment [PDF]
, 2006 This paper presents a downlink performance evaluation of a candidate physical layer for future generation cellular communications systems employing link adaptive MIMO-OFDMA.
Armour, SMD +4 more
core +2 more sources
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
Modeling and simulation of the non-stationary fading channels under fast time-variant environment
Dianxin kexue, 2020 For solving the problem of non-stationary features in rapid time-varying scenarios,such as high-speed railway,unmanned aerial vehicle and V2X communication,an improved simulation method for non-stationary fading channels was proposed.Introducing the ...
Boyu HUA +3 more
doaj +2 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 To obtain a high-resolution and wide-swath image, the azimuth multichannel technique has been widely used in synthetic aperture radar (SAR) systems to overcome the contradiction between the wide swath and high pulse repetition frequency. For a high image
Jiayi Guo +4 more
doaj +1 more source
Joint-Detection and Interference Cancellation Based Burst-by-Burst Adaptive CDMA Schemes
, 2002 Spread adaptive quadrature amplitude modulated (AQAM) code-division multiple access (CDMA) is proposed as a powerful means of exploiting the time-variant channel capacity fluctuations of wireless channels.
Hanzo, L., Kuan, E.L., Ng, S.X.
core +1 more source
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Cell wall target fragment discovery using a low‐cost, minimal fragment library
FEBS 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
EURASIP Journal on Advances in Signal Processing, 2010 In the 2.45 GHz band, indoor wireless off-body data communication by a moving person can be problematic due to time-variant signal fading and the consequent variation in channel parameters.
Moeneclaey Marc +4 more
doaj +2 more sources