Results 41 to 50 of about 260 (85)
Energy Efficiency Maximization for a Relay Assisted Parasitic Symbiotic Radio Network
IET Communications, Volume 19, Issue 1, January/December 2025.This work maximizes the energy efficiency (EE) of a relay‐assisted parasitic symbiotic radio (SR) network, which has not been studied yet. We formulate a mixed‐integer programming optimization problem that maximizes the system EE and decompose the formulated non‐convex problem into two subproblems corresponding to the two different successive ...
Xi Song +4 more
wiley +1 more source
Sum rate maximization in active RIS-assisted ambient backscatter communication system
Results in EngineeringThis paper focuses on an active reconfigurable intelligent surface (RIS)-assisted ambient backscatter communication (AmBC) system. The explosive growth of the Internet of Things (IoT) has led to increasing demands for efficient communication, yet ...
Hongxia Zheng +7 more
doaj +1 more source
Improved Signal Detection for Ambient Backscatter Communications
, 2023 In ambient backscatter communication (AmBC) systems, passive tags connect to a reader by reflecting an ambient radio frequency (RF) signal. However, the reader may not know the channel states and RF source parameters and can experience interference.
Maaref, A., Tellambura, C., Zargari, S.
core
Backscatter-NOMA: A Symbiotic System of Cellular and Internet-of-Things Networks
IEEE Access, 2019 Non-orthogonal multiple access (NOMA) is envisioned as a key technology to enhance the spectrum efficiency for 5G cellular networks. Meanwhile, ambient backscatter communication is a promising solution to the Internet of Things (IoT), due to its high ...
Qianqian Zhang +3 more
doaj +1 more source
Sensing and Backscatter Communication Integration: Realizing Efficiency in Wireless Systems for IoT
, 2023 In an era driven by the Internet of Things (IoT) and rapid wireless communication advances, the synergy between sensing and backscatter communication (BackCom) has emerged as a frontier of research.
Galappaththige, Diluka +2 more
core
RIScatter: Unifying Backscatter Communication and Reconfigurable Intelligent Surface
, 2023 Backscatter Communication (BackCom) nodes harvest energy from and modulate information over external carriers. Reconfigurable Intelligent Surface (RIS) adapts phase shift response to alter channel strength in specific directions.
Zhao, Yang, Clerckx, Bruno
core
Outage Performance of RIS-Assisted AmBC-NOMA Cooperative V2I Communications
IEEE Open Journal of the Communications SocietyVehicle-to-infrastructure (V2I) communication facilitates seamless interaction between vehicles and the surrounding infrastructure. Recently, there has been a notable surge in research interest in ambient backscatter communications (AmBC), primarily due ...
Ahmed Samir +4 more
doaj +1 more source
Resource Allocations for Symbiotic Radio with Finite Block Length Backscatter Link [PDF]
, 2020 This paper exploits a generic downlink symbiotic radio (SR) system, where a Base Station (BS) establishes a direct (primary) link with a receiver having an integrated backscatter device (BD).
Chu, Zheng +4 more
core +1 more source
Time-Spread Pilot-Based Channel Estimation for Backscatter Networks
, 2023 Current backscatter channel estimators employ an inefficient silent pilot transmission protocol, where tags alternate between silent and active states. To enhance performance, we propose a novel approach where tags remain active simultaneously throughout
Galappaththige, Diluka +3 more
core
Jordanian Journal of Computers and Information TechnologyThe proliferation of Internet of Things (IoT) devices in the transition towards 6G networks demands ultra-energy-efficient communication solutions capable of supporting massive connectivity. Ambient Backscatter Communication (AmBC) integrated with Energy
Lam Dong Huynh +3 more
doaj +1 more source