Results 81 to 90 of about 41,590 (218)
Passive Tracking System and Method [PDF]
System and methods are disclosed for passively determining the location of a moveable transmitter utilizing a pair of phase shifts at a receiver for extracting a direction vector from a receiver to the transmitter.
Arndt, G. Dickey +6 more
core +1 more source
Boosting Photo‐Pyroelectric Effect via Tunable Polarization and Interfacial Defect Engineering
Advanced Science, Volume 13, Issue 25, 4 May 2026.This study reports Ba(Ti0.85Zr0.15)O3 nanocatalysts with enhanced polarization and oxygen‐vacancy‐rich interfaces for efficient NIR‐II photo‐pyroelectric therapy. Zr doping boosts the pyroelectric coefficient and accelerates polarization switching, while oxygen vacancies improve photothermal conversion and surface reactivity.
Yanli Huang +13 more
wiley +1 more source
Comparison of MIMO channels from multipath parameter extraction and direct channel measurements [PDF]
, 2004 This work presents a MIMO throughput performance analysis of dynamic wideband double-directional channel measurements that were recently obtained by the University of Bristol. Identical 16-element uniform circular arrays (UCAs) were employed at both ends
Beach, MA, Pal, A, Tan, CM
core
Engineering Reports, Volume 8, Issue 5, May 2026.Rapid 5G/6G evolution demands cross‐layer resource management to address congestion, latency, and reliability in multi‐hop wireless networks. This paper proposes a TOHRP–LBCA framework using DSA and congestion−/topology−/interference‐aware routing and channel allocation, yielding throughput gains, lower latency, improved packet delivery, and higher ...
Emmanuel Ahatsi, Oludolapo Olanrewaju
wiley +1 more source
Polarimetric properties of indoor MIMO channels for different floor levels in a residential house [PDF]
, 2017 This paper analyzes polarimetric characteristics of power delay profiles (PDPs), cross polarization discrimination (XPD), and received power of specular and diffuse multipath components of indoor MIMO radio channels at 2.45 GHz. Measurements were done in
Gaillot, DP +5 more
core
Advanced Quantum Technologies, Volume 9, Issue 5, May 2026.ABSTRACT Quantum‐native communication systems are reshaping secure, programmable, and coherence‐aware networking beyond the classical paradigm. As intelligent physical infrastructures, ranging from unmanned aerial vehicle swarms to satellite Quantum Key Distribution (QKD) platforms, demand trust, synchronization, and ultra‐reliability, conventional ...
Shakil Ahmed +2 more
wiley +1 more source
Spatial Dynamics of Indoor Radio Wideband Channels
EURASIP Journal on Wireless Communications and Networking, 2010 The multipath components of superwideband (2–17.2 GHz) nonline-of-sight channel responses measured inside several buildings are stable along sections that are 27 cm long on average with a standard deviation of 16 cm.
Hayar Aawatif +2 more
doaj
Impact of Common Reflecting and Absorbing Building Materials on THz Multipath Channels. [PDF]
Radio Sci, 2022 Gomez-Ponce J +7 more
europepmc +1 more source
Slow Frequency-Hopping Multicarrier DS-CDMA for Transmission over Nakagami Multipath Fading Channels
, 2001 A novel multiple access scheme based on slow frequency hopping multicarrier direct-sequence code division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrowband CDMA ...
Hanzo, L., Yang, L-L.
core
, 2015 The present paper is devoted to the evaluation of energy detection based spectrum sensing over different multipath fading and shadowing conditions. This is realized by means of a unified and versatile approach that is based on the particularly flexible ...
Al-Qutayri, Mahmoud +6 more
core +1 more source