6533b861fe1ef96bd12c4435
RESEARCH PRODUCT
Simultaneous harvest-and-transmit ambient backscatter communications under Rayleigh fading
Tapani RistaniemiImran KhanByung Moo LeeFurqan Jameelsubject
Signal Processing (eess.SP)energy harvestingPower managementBackscatterComputer Networks and CommunicationsComputer sciencelcsh:TK7800-8360energiansiirtoSystems and Control (eess.SY)02 engineering and technologysmart networkingElectrical Engineering and Systems Science - Systems and Control01 natural sciencesPower budgetlcsh:Telecommunicationlangaton tiedonsiirtoInternet of things (IoT)lcsh:TK5101-6720FOS: Electrical engineering electronic engineering information engineeringSmart networking0202 electrical engineering electronic engineering information engineeringElectronic engineeringWirelessesineiden internetElectrical Engineering and Systems Science - Signal ProcessingRayleigh fadingEnergy harvestingbusiness.industrylcsh:Electronics010401 analytical chemistry020206 networking & telecommunicationsambient backscatter communicationsWireless-powered communications0104 chemical sciencesComputer Science ApplicationsAmbient backscatter communicationswireless-powered communicationsSignal ProcessingälytekniikkaRadio frequencybusinessEnergy harvestinglangattomat verkotEnergy (signal processing)description
Ambient backscatter communications is an emerging paradigm and a key enabler for pervasive connectivity of low-powered wireless devices. It is primarily beneficial in the Internet of things (IoT) and the situations where computing and connectivity capabilities expand to sensors and miniature devices that exchange data on a low power budget. The premise of the ambient backscatter communication is to build a network of devices capable of operating in a battery-free manner by means of smart networking, radio frequency (RF) energy harvesting and power management at the granularity of individual bits and instructions. Due to this innovation in communication methods, it is essential to investigate the performance of these devices under practical constraints. To do so, this article formulates a model for wireless-powered ambient backscatter devices and derives a closed-form expression of outage probability under Rayleigh fading. Based on this expression, the article provides the power-splitting factor that balances the tradeoff between energy harvesting and achievable data rate. Our results also shed light on the complex interplay of a power-splitting factor, amount of harvested energy, and the achievable data rates.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-06-24 | EURASIP Journal on Wireless Communications and Networking |