Data acquisition with RF-based energy harvesting sensor: From information theory to green system

Tao Li, Pingyi Fan, Khaled Letaief

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

Harvesting energy from ambient environment is a new promising solution to free electronic devices from electric wire or limited-lifetime battery, which is significant in sensor networks and body-area networks. This paper investigates the fundamental limits of information transmission in data acquisition system with RF-based energy harvesting sensor node, in which the host node acts not only as an information source but also as an energy source for the sensor node while only information is transmitted back from sensor to host node. From a view of system level, achievable capacity-rate region and capacity-rate function are proposed as metrics to measure the transmission performance. The tradeoff relationship of two way information rates between sensor and host node in a time division duplex system is obtained and the corresponding optimal transmission policy is also given. At last, a typical application in terms of minimizing required transmit power, namely green system, is introduced to validate the results developed in this paper.

Original languageEnglish
Title of host publication2014 IEEE Global Communications Conference, GLOBECOM 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4300-4305
Number of pages6
ISBN (Electronic)9781479935116
DOIs
Publication statusPublished - 9 Feb 2014
Externally publishedYes
Event2014 IEEE Global Communications Conference, GLOBECOM 2014 - Austin, United States
Duration: 8 Dec 201412 Dec 2014

Other

Other2014 IEEE Global Communications Conference, GLOBECOM 2014
CountryUnited States
CityAustin
Period8/12/1412/12/14

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Keywords

  • achievable capacity-rate region
  • capacity-rate function
  • energy harvesting
  • green system
  • optimal transmission policy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Communication

Cite this

Li, T., Fan, P., & Letaief, K. (2014). Data acquisition with RF-based energy harvesting sensor: From information theory to green system. In 2014 IEEE Global Communications Conference, GLOBECOM 2014 (pp. 4300-4305). [7037483] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOCOM.2014.7037483