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6 - Ambient Backscatter Relay Communication

from Part II - Architectures, Protocols, and Performance Analysis

Published online by Cambridge University Press:  24 April 2020

Dinh Thai Hoang
Affiliation:
University of Technology, Sydney
Dusit Niyato
Affiliation:
Nanyang Technological University, Singapore
Dong In Kim
Affiliation:
Sungkyunkwan University, Seoul
Nguyen Van Huynh
Affiliation:
University of Technology, Sydney
Shimin Gong
Affiliation:
Sun Yat-sen University
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Summary

Wireless backscatter shares some similarity with the radio-frequency (RF)-powered wireless communications. This motivates the design of a hybrid radio that can operate in either active RF communications or backscatter communications. The flexibility in the radio’s mode switching provides an additional degree of freedom to improve the overall network performance. In this chapter, we first review cooperative transmission strategies in conventional RF-powered wireless communicationsystems and then discuss the feasibility of cooperative relay transmission via backscatter communication. We propose the passive relaying scheme that leverages the backscatter radios to act as passive relays and assist the RF communications. The passive relays backscatter the RF signals from the source to the receiver which, by experiments, shows to improve the transmission rate due to the enhanced multi-path diversity gain.

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Publisher: Cambridge University Press
Print publication year: 2020

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