Performance Analysis of Ambient Backscatter NOMA Systems

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 successive interference cancellation (ipSIC)...

Full description

Saved in:
Bibliographic Details
Published in:Applied sciences 2023-05, Vol.13 (10), p.6166
Main Authors: Zhang, Ce, Yue, Xinwei, Yao, Yuanyuan, Li, Xuehua
Format: Article
Language:English
Subjects:
ambient backscatter communication
Analysis
Antennas
Asymptotic properties
Backscattering
Collaboration
Communications networks
Efficiency
Energy
Energy efficiency
hardware impairment
Internet of Things
non-orthogonal multiple access
Nonorthogonal multiple access
outage probability
Outages
Radio frequency
Random variables
Signal to noise ratio
Spread spectrum
Wireless communications
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 successive interference cancellation (ipSIC) and residual hardware impairments (RHIs) for AmBC–NOMA systems were taken into consideration. We further derived the closed-form and asymptotic expressions of outage probability for the BD and the d-th user. Based on the asymptotic expressions, the diversity orders of the BD and the d-th user were obtained in the high SNR regime. Furthermore, throughput and energy efficiency are further discussed for AmBC-assisted orthogonal multiple access (OMA) systems in the delay-limited transmission model. The numerical results revealed that: (i) AmBC–NOMA systems have the ability to achieve better outage behavior than AmBC–OMA; (ii) due to the existence of the backscatter link, the error floors of outage probability for the BD and the d-th user appear at a high signal-to-noise ratio; (iii) AmBC–NOMA systems are able to achieve higher energy efficiency and throughput than AmBC–OMA systems.
ISSN:2076-3417
2076-3417
DOI:10.3390/app13106166