Deakin University
Browse

File(s) under permanent embargo

Short-Range Ambient Backscatter Communication Using Reconfigurable Intelligent Surfaces

Version 2 2024-06-05, 01:19
Version 1 2020-07-22, 14:41
conference contribution
posted on 2024-06-05, 01:19 authored by M Nemati, J Ding, Jinho ChoiJinho Choi
© 2020 IEEE. Ambient backscatter communication (AmBC) has been introduced to address communication and power efficiency issues for short-range and low-power Internet-of-Things (IoT) applications. On the other hand, reconfigurable intelligent surface (RIS) has been recently proposed as a promising approach that can control the propagation environment especially in indoor communication environments. In this paper, we propose a new AmBC model over ambient orthogonal-frequency-division-multiplexing (OFDM) subcarriers in the frequency domain in conjunction with RIS for short-range communication scenarios. A tag transmits one bit per each OFDM subcarrier broadcasted from a WiFi access point. Then, RIS augments the signal quality at a reader by compensating the phase distortion effect of multipath channel on the incident signal. We also exploit the special spectrum structure of OFDM to transmit more data over its squeezed orthogonal subcarriers in the frequency domain. Consequently, the proposed method improves the bit-error-rate (BER) performance and provides a higher data rate compared to existing AmBC methods. Analytical and numerical evaluations show the superior performance of the proposed approach in terms of BER and data rate.

History

Volume

2020-May

Pagination

1-6

Location

Seoul, South Korea

Start date

2020-05-25

End date

2020-05-28

ISSN

1525-3511

ISBN-13

9781728131061

Language

eng

Publication classification

E1 Full written paper - refereed

Title of proceedings

WCNC 2020 : Proceedings of the 2020 IEEE Wireless Communications and Networking Conference

Event

Wireless Communications and Networking Conference (2020 : Seoul, South Korea)

Publisher

IEEE

Place of publication

Piscataway, N.J.

Usage metrics

    Research Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC