English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

This paper proposes an ultrasonic backscatter communication (UsBC) system forpassive implantable medical devices (IMDs) that can operate without batteries,enabling versatile revolutionary applications for future healthcare. Theproposed UsBC system consists of a reader and a tag. The reader sendsinterrogation pulses to the tag. The tag backscatters the pulses based on thepiezoelectric effect of a piezo transducer. We present several basic modulationschemes for UsBC by impedance matching of the piezo transducer. To mitigate theinterference of other scatters in the human body, the tag transmits informationbits by codeword mapping, and the reader performs codeword matching beforeenergy detection in the reader. We further derive the theoretical bit-errorrate (BER) expression. Monte Carlo simulations verify the theoretical analysisand show that passive UsBC can achieve low BER and low complexity, which isdesirable for size- and energy-constrained IMDs.

Ultrasonic Backscatter Communication for Implantable Medical Devices