Results 21 to 30 of about 4,981,803 (97)
Wireless Communications and Mobile Computing, Volume 2021, Issue 1, 2021., 2021 In this paper, we consider a novel Internet of Things (IoT) system in smart city called unmanned aerial vehicle‐ (UAV‐) assisted cognitive backscatter network, where a UAV is employed as both a relay and a radio frequency source to help the data transmission between ground IoT backscatter devices (BDs) and a remote data center (DC).
Jiazhou Liu +5 more
wiley +1 more source
Wireless Communications and Mobile Computing, Volume 2021, Issue 1, 2021., 2021 Ambient backscatter communication (AmBC) is one of the candidate solutions for the 6G green internet of things (IoT) network. However, the uncontrollability of the radio frequency (RF) environment is one of the main obstacles hindering the popularization of AmBC.
Qiang Liu +4 more
wiley +1 more source
Ambient Backscatter Assisted Co-Existence in Aerial-IRS Wireless Networks
IEEE Open Journal of the Communications Society, 2022 Ambient backscatter communication (AmBC) is an emerging technology that has the potential to offer spectral- and energy-efficient solutions for the next generation wireless communications networks, especially for the Internet of Things (IoT). Intelligent
Sourabh Solanki +3 more
doaj +1 more source
Signal Detection in Ambient Backscatter Systems: Fundamentals, Methods, and Trends
IEEE Access, 2023 Internet-of-Things (IoT) is rapidly growing in wireless technology, aiming to connect vast numbers of devices to gather and distribute vital information.
Shayan Zargari +4 more
doaj +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
Design of a New CIM-DCSK-Based Ambient Backscatter Communication System [PDF]
, 2023 To improve the data rate in differential chaos shift keying (DCSK) based ambient backscatter communication (AmBC) system, we propose a new AmBC system based on code index modulation (CIM), referred to as CIM-DCSK-AmBC system.
Ma, Huan +3 more
core +1 more source
IRS-Assisted Ambient Backscatter Communications Utilizing Deep Reinforcement Learning
, 2022 We consider an ambient backscatter communication (AmBC) system aided by an intelligent reflecting surface (IRS). The optimization of the IRS to assist AmBC is extremely difficult when there is no prior channel knowledge, for which no design solutions are
Zhou, Xiangyun, Jia, Xiaolun
core +1 more source
Secrecy Wireless‐Powered Sensor Networks for Internet of Things
Wireless Communications and Mobile Computing, Volume 2020, Issue 1, 2020., 2020 This paper investigates a secure wireless‐powered sensor network (WPSN) with the aid of a cooperative jammer (CJ). A power station (PS) wirelessly charges for a user equipment (UE) and the CJ to securely transmit information to an access point (AP) in the presence of multiple eavesdroppers.
Junxia Li +7 more
wiley +1 more source
Zero-Energy-Device for 6G: First Real-Time Backscatter Communication thanks to the Detection of Pilots from an Ambient Commercial Cellular Network [PDF]
, 2023 Ambient backscatter communication technology (AmBC) and a novel device category called zero-energy devices (ZED) have recently emerged as potential components for the forthcoming 6th generation (6G) networks.
Liao, Jingyi +6 more
core +1 more source
Performance Analysis of Ambient Backscatter NOMA Systems
, 2023 This paper analyzed the performance of an ambient-backscatter-(AmBC)-assisted non-orthogonal multiple access (NOMA) system, where a backscatter device (BD) broadcasts its signal to numerous users. More specifically, the realistic assumptions of imperfect
Yuanyuan Yao +3 more
core +1 more source