Results 51 to 60 of about 260 (85)

Enhancing AmBC Systems with Deep Learning for Joint Channel Estimation and Signal Detection

, 2023
The era of ubiquitous, affordable wireless connectivity has opened doors to countless practical applications. In this context, ambient backscatter communication (AmBC) stands out, utilizing passive tags to establish connections with readers by harnessing
Hakimi, A., Maaref, A., Tellambura, C., Zargari, S.   +3 more
core  

Deep Conditional Generative Adversarial Networks for Efficient Channel Estimation in AmBC Systems

IEEE Transactions on Machine Learning in Communications and Networking
In ambient backscatter communication (AmBC), battery-free devices (tags) harvest energy from ambient radio frequency (RF) signals and communicate with readers.
Shayan Zargari, Chintha Tellambura, Amine Maaref, Geoffrey Ye Li   +3 more
doaj   +1 more source

Performance Analysis of CR-Enabled AmBC NOMA Under IQI and Sensitivity Constraints

IEEE Access
Considering tag sensitivity and in-phase and quadrature-phase imbalance (IQI), this paper investigates the reliability and security of a cognitive radio (CR)-aided ambient backscatter communication (AmBC) non-orthogonal multiple access (NOMA) system ...
Wenjing Zhao, Nanxi Li, Jing Guo, Jianchi Zhu, Yi Gu, Gongpu Wang, Chintha Tellambura   +6 more
doaj   +1 more source

Secrecy Analysis and Prediction of Ambient Backscatter NOMA Systems With I/Q Imbalance

IEEE Open Journal of the Communications Society
In this paper, the reliability and security of ambient backscatter (AmBC) non-orthogonal multiple access (NOMA) systems on Nakagami-m distribution are studied.
Jiangfeng Sun, Xingchang Chuai, Yanyang Zeng, Xingwang Li   +3 more
doaj   +1 more source

AmBC-Assisted Mobility Vehicle System With Partial NOMA Transmission

IEEE Open Journal of the Communications Society
This paper proposes the performance of a novel ambient-backscatter communication (AmBC)-assisted mobility vehicle system with partial non-orthogonal multiple access (NOMA) systems, where a jointly composite signal of NOMA and orthogonal multiple access ...
Tien Hoa Nguyen, Kieu Ha Phung
doaj   +1 more source

Load Modulation for Backscatter Communication: Channel Capacity and Near-Capacity Schemes

, 2023
In backscatter communication (BC), a passive tag transmits information by just affecting an external electromagnetic field through load modulation. Thereby, the feed current of the excited tag antenna is modulated by adapting the passive termination load.
Dumphart, Gregor, Sager, Johannes, Wittneben, Armin   +2 more
core  

QoS Aware Transmit Beamforming for Secure Backscattering in Symbiotic Radio Systems

, 2023
This paper focuses on secure backscatter transmission in the presence of a passive multi-antenna eavesdropper through a symbiotic radio (SR) network. Specifically, a single-antenna backscatter device (BD) aims to transmit confidential information to a ...
Al-nahari, Azzam, Jantti, Riku, Mishra, Deepak, Nie, Mingcheng, Yuan, Jinhong   +4 more
core  

Ultra-Low-Power Wide Range Backscatter Communication Using Cellular Generated Carrier. [PDF]

Sensors (Basel), 2021
Sheikh MU, Xie B, Ruttik K, Yiğitler H, Jäntti R, Hämäläinen J.   +5 more
europepmc   +1 more source

Directional amplitude backscatter modulation with suppressed Doppler based on rotating resonant loop. [PDF]

Sci Rep, 2022
Azarfar A, Barbot N, Perret E.
europepmc   +1 more source

A Survey on Reinforcement Learning for Reconfigurable Intelligent Surfaces in Wireless Communications. [PDF]

Sensors (Basel), 2023
Puspitasari AA, Lee BM.
europepmc   +1 more source