Autonomous operation of super-regenerative receiver in BAN

Praveen Kalyanasundaram, Li Huang, Koji Imamura, Guido Dolmans

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

Super-regenerative receiver is one of the potential candidates to achieve ultra low power wireless communication in body area network (BAN). The main limitations of the super-regenerative receiver include the difficulty in choosing a good quench waveform to optimize its sensitivity and selectivity, and its significantly degraded performance in the presence of interference. To address the above problems, we first propose a novel quench waveform search algorithm providing good sensitivity and selectivity results. The algorithm avoids the undesirable manual calibration and hence suitable for autonomous operation. In addition, we consider the spectrum sensing algorithm to autonomously avoid data transmission in the presence of unacceptable interferences. The above algorithms enabling autonomous operation of the super-regenerative receiver are implemented in hardware. Our measurement results show that by using the quench waveform calibrated super-regenerative receiver, the system can provide stable probability or mis-detection and probability of false alarm results in different carrier frequencies. This is very desirable for the determination of a good threshold in spectrum sensing. Together with our previously reported chip designed for the super-regenerative receiver, we have developed an autonomously operating super-regenerative receiver based wireless system, which is ideal for many BAN applications.

Original languageEnglish
Title of host publication2012 6th International Symposium on Medical Information and Communication Technology, ISMICT 2012
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)978-1-4673-1236-3
ISBN (Print)978-1-4673-1234-9
DOIs
Publication statusPublished - 2 Jul 2012
Externally publishedYes
Event2012 6th International Symposium on Medical Information and Communication Technology, ISMICT 2012 - La Jolla, CA, United States
Duration: 25 Mar 201229 Mar 2012

Conference

Conference2012 6th International Symposium on Medical Information and Communication Technology, ISMICT 2012
Country/TerritoryUnited States
CityLa Jolla, CA
Period25/03/1229/03/12

Keywords

  • BAN
  • spectrum sensing
  • successive approximation register
  • super-regenerative receiver
  • ultra low power

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