Cooperative transmit-power estimation under wireless fading

Murtaza Zafer, Bong Jun Ko, Wang Hei Ho

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

8 Citations (Scopus)

Abstract

We study blind estimation of transmission power of a node based on received power measurements obtained under wireless fading. Specifically, the setup consists of a set of monitors that measure the signal power received from the transmitter, and the goal is to utilize these measurements to estimate the transmission power in the absence of any prior knowledge of the transmitter's location or any statistical distribution of its power. Towards this end, we exploit spatial diversity in received-power measurements and cooperation among the multiple monitoring nodes; based on theoretical analysis we obtain the Maximum Likelihood (ML) estimate, derive fundamental geometrical insights and show that this estimate is asymptotically optimal. Finally, we provide numerical results comparing the performance of the estimators through simulations and on a data-set of field measurements.
Original languageEnglish
Title of host publicationProceedings of the 9th ACM International Symposium on Mobile Ad Hoc Networking and Computing 2008, MobiHoc'08
Pages381-390
Number of pages10
DOIs
Publication statusPublished - 15 Dec 2008
Externally publishedYes
Event9th ACM International Symposium on Mobile Ad Hoc Networking and Computing 2008, MobiHoc'08 - Hong Kong SAR, Hong Kong
Duration: 26 May 200830 May 2008

Conference

Conference9th ACM International Symposium on Mobile Ad Hoc Networking and Computing 2008, MobiHoc'08
CountryHong Kong
CityHong Kong SAR
Period26/05/0830/05/08

Keywords

  • Cooperative monitoring
  • Maximum likelihood
  • Mobile ad-hoc network
  • Power estimation
  • Sensor network
  • Wireless

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

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