NDLI: Full-duplex ambient backscatter with physical layer network coding

Content Provider	IET Digital Library
Author	Xu, Baoyi Xiang, Zheng Ren, Peng Guo, Xiaomeng
Abstract	Ambient backscatter which utiliees the ambient radio-frequency signals to enable transmissions between battery-less devices has attracted considerable attention in academia and industry. This study addresses the questions of full-duplex (FD) and self-interference cancellation (SIC) for ambient backscatter which adopts dual-antenna structure to achieve persistent information transmission and energy harvesting. The authors construct the physical-layer network coding (PNC) mapping principle of on–off keying in the dual-antenna structure and propose the PNC-based FD algorithm to eliminate the self-interference in the information domain. Furthermore, the bit-error-ratio and throughput performances are analysed under conventional half-duplex mode and the proposed FD mode, respectively. In order to facilitate system complexity and reduce power consumption, they design a hardware prototype to achieve SIC which consists of low-power passive analogue components. Numerical results are provided to confirm the theoretical studies. Circuit simulations demonstrate that the circuit is commendably consistent with the design concept.
Starting Page	2820
Ending Page	2828
Page Count	9
ISSN	17518628
Volume Number	14
e-ISSN	17518636
Issue Number	Issue 16, Oct (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/14/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.1302
Journal	IET Communications
Publisher Date	2020-07-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Ambient Radiofrequency Signal Backscatter Batteryless Device Bit-error-ratio Circuit Simulation Code Communication Complexity Dual-antenna Structure Electromagnetic Compatibility Energy Harvesting Error Statistics FD Mode Full-duplex Ambient Backscatter Half-duplex Mode Information Domain Interference Interference Suppression Low Power Electronics Low-power Passive Analogue Component Network Coding On-off Keying Passive Filter Passive Network Persistent Information Transmission Physical-layer Network Coding Mapping Principle PNC Mapping Principle PNC-based FD Algorithm Power Consumption Radio Link And Equipment Radio Wave Propagation Self-interference Cancellation System Complexity Telecommunication Power Management Throughput Performances
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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