Results 51 to 60 of about 4,982,152 (160)
An Energy Efficient Cooperative Communication Scheme in Ambient RF Powered Sensor Networks
IEEE Access, 2019 The ambient radio frequency (RF) energy harvesting technology has recently been regarded as a potential solution for powering the wireless sensor networks (WSNs).
Tao Liu +3 more
doaj +1 more source
Performance Characterization of Relaying Using Backscatter Devices
IEEE Open Journal of the Communications Society, 2020 In this paper, we examine the error performance of backscatter communication in the presence of ambient interference, where the backscatter device acts as a relay.
Xiaolun Jia, Xiangyun Zhou
doaj +1 more source
Secret Key Generation Between Ambient Backscatter Devices
IEEE Access, 2023 We analyze secret key generation between ambient backscatter devices where the channel between an ambient transmitter and the backscatter devices is used as a source of randomness.
Jari Lietzen, Olav Tirkkonen
doaj +1 more source
Long range ambient backscatter apparatus
, 2022 In accordance with a first aspect of the present invention, there is provided an ambient backscatter circuit arranged to generate a varying circuit reflection coefficient. The ambient backscatter circuit comprises: a modulation member; a switching device
Goussetis, George; id_orcid +1 more
core +1 more source
Plasma and Electric Environment Within Lunar Pits and Caves Exposed to the Solar Wind
Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.Abstract We have assessed the plasma and electric environment within a lunar pit and its connected subsurface cave utilizing plasma simulations. It is shown that adjacent illuminated and shadowed regions along the interior walls of the pit induce differential charging, exceeding the levels typically observed on open planar surfaces.
Y. Miyake, J. Nakazono
wiley +1 more source
Ambient ZeroScatter: Ambient BPSK and QPSK Backscatter Communication using Existing Digital I/O Pins [PDF]
, 2019 Thesis (Master's)--University of Washington, 2019ZeroScatter is an ultra-low-cost, minimum-complexity approach that enables backscatter wireless data uplink from billions of existing, commodity microcontrollers (MCUs) and field-programmable gate arrays ...
Dadkhah, Anissa
core
Advanced Optical Materials, Volume 14, Issue 41, 6 November 2026.Electric fields drive dynamic photonic assemblies that reversibly generate structural color. By tuning nanoscale organization through controlled particle disorder, the presented system exhibits a unique binary color response, switching between blue and pink depending on viewing angle. Combined with metameric design, this allows for a two‐factor optical
Flora Schöfbeck +9 more
wiley +1 more source
The Efficient BackFi Transmission Design in Ambient Backscatter Communication Systems for IoT
IEEE Access, 2019 According to the limited communication distance and the low transmission efficiency for massive electronic tags/sensors of traditional or bistatic backscatter technology, the BackFi transmission protocol design with energy harvesting of massive smart ...
Baofeng Ji +5 more
doaj +1 more source
Backscatter Communications over Ambient OFDM Signals using Null Subcarriers [PDF]
, 2018 Käsikirjoitus avataan, kun artikkeli julkaistu.In recent years, ambient backscatter communications have gained a lot of interest as a promising enabling technology for Internet-of-Things and green communications.
Li, Geoffrey +11 more
core +1 more source
Gaining from Multiple Ambient Sources: Signaling Matrix for Multi-Antenna Backscatter Devices
, 2022 The backscatter device (BD) in ambient backscatter communication (AmBC) systems is often illuminated by multiple ambient sources in reality. Although multiple ambient sources can benefit the AmBC systems, this scenario has been rarely studied.
Jäntti, Riku +5 more
core +1 more source