Results 181 to 190 of about 22,742 (201)
Some of the next articles are maybe not open access.
Covert Communication in Backscatter Radio
ICC 2019 - 2019 IEEE International Conference on Communications (ICC), 2019Covert communication in backscatter radio systems is considered, where the transmitter controls its transmit power to keep the transponder's response hidden, while a warden tries to detect this covert communication. To achieve covertness, we propose a non-conventional transmission scheme where the transmitter emits noise-like signal with transmit power
Khurram Shahzad, Xiangyun Zhou
openaire +1 more source
Wireless Powered Communication Networks with Backscatter Communication
2018By exploiting the advantages of the harvest-then-transmit (HTT) mode and the BackCom mode, two schemes that integrating the HTT mode and the BackCom mode are proposed for the WPCN in this chapter, i.e., the hybrid user scheme and the hybrid mode scheme.
Guan Gui, Bin Lyu
openaire +1 more source
Ambient Backscatter Communication in 5G
2021 Third International Conference on Inventive Research in Computing Applications (ICIRCA), 2021Cognitive Radios (CR) is to overcome spectrum scarcity and it provides functions in the form of sensing, decision taking, sharing and mobility of the spectrum. One of the critical issue in wireless networks is energy efficiency due to technological limitations on energy requirements.
openaire +1 more source
Exploiting noncircularity in backscattering communications
2015 International Symposium on Wireless Communication Systems (ISWCS), 2015In backscatter radio systems, a passive (i.e., battery-free) device (so-called tag) is able to transmit information by harvesting energy from a carrier transmitted by an access point or base station (so-called reader), thus enabling significant power savings compared to traditional wireless communication schemes.
Darsena, Donatella +2 more
openaire +3 more sources
Tunnel Diodes for Backscattering Communications
2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC), 2018The authors want to give an overview about the research progresses done in the latest years to enhance ranges of microwave backscattering communications with RFIDs exploiting the tunneling effect of tunnel diodes. The first prototype of a Tunneling RFID Tag built using a tunnel diode outperformed semi-passive tags by at least a factor of 5 in range ...
Francesco Amato, Gregory D. Durgin
openaire +1 more source
Vibrational Radar Backscatter Communications
2021 55th Asilomar Conference on Signals, Systems, and Computers, 2021Jessica Centers, Jeffrey Krolik
openaire +1 more source
Hybrid backscatter communication for wireless powered communication networks
2016 International Symposium on Wireless Communication Systems (ISWCS), 2016We propose hybrid backscatter communication for wireless powered communication networks (WPCNs) to increase transmission range and provide uniform rate distribution in heterogeneous network (HetNet) environment. In such HetNet where the TV tower or high-power base station (macrocell) coexists with densely deployed small-power access points (e.g., small-
Sung Hoon Kim, Dong In Kim
openaire +1 more source
Backscatter radio communication for wireless powered communication networks
2015 21st Asia-Pacific Conference on Communications (APCC), 2015Backscatter radio communication has become a newly emerging technique for low-rate, low-power and large-scale wireless sensor networks. As this promising technology enables a long-range communication for sensors with low power in a distributed area, it is desirable to support wireless powered communication networks (WPCNs) that experience doubly near ...
Shin Hyuk Choi, Dong In Kim
openaire +1 more source
VHF Bistatic Auroral Backscatter Communication
1968In the first sections a short review is given about the basic characteristics of the VHF-backscatter-phenomenon: Aspect sensitivity control by the geomagnetic field, back-scatter mechanism, and wavelength dependence. Then the geometry of the propagation path of VHF bistatic aurora backscatter communication is computed according to a theoretical model ...
openaire +1 more source