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On reducing the Cramer-Rao lower bound of localization by selecting base stations based on convex relaxation

  • Tie Nan Zhang
  • , Liang Xin
  • , Jian Xin Liu
  • , Xing Peng Mao*
  • *Corresponding author for this work
  • School of Electronics and Information Engineering, Harbin Institute of Technology
  • Collaborative Innovation Center of Information Sensing and Understanding
  • Science and Technology on Electronic Information Control Laboratory

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

Abstract

In wireless network systems, time of arrival (TOA) scheme is always needed to implement the self-localization of the user manual. If multiple positions of interest exist, the Cramer-Rao lower bounds (CRLBs) of TOA localization in these positions are determined by the deployment of the base stations. The design of base station placement is addressed in this paper; and rather than the exhaustive method (EXM) we propose to optimize over a selection vector. Under a certain condition, this non-convex optimization problem can be relaxed into a convex one; and improvements are also made to avoid the limitation from the condition. What's more, a fusion strategy is designed by combining these convex algorithms together, which further reduces the maximum CRLB of the interested positions. Complexity analysis and numerical results certify the efficiency of the proposed methods in different scenes.

Original languageEnglish
Title of host publication2017 8th IEEE Annual Information Technology, Electronics and Mobile Communication Conference, IEMCON 2017
EditorsHimadri Nath Saha, Satyajit Chakrabarti
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages338-342
Number of pages5
ISBN (Electronic)9781538633717
DOIs
StatePublished - 21 Nov 2017
Externally publishedYes
Event8th IEEE Annual Information Technology, Electronics and Mobile Communication Conference, IEMCON 2017 - Vancouver, Canada
Duration: 3 Oct 20175 Oct 2017

Publication series

Name2017 8th IEEE Annual Information Technology, Electronics and Mobile Communication Conference, IEMCON 2017

Conference

Conference8th IEEE Annual Information Technology, Electronics and Mobile Communication Conference, IEMCON 2017
Country/TerritoryCanada
CityVancouver
Period3/10/175/10/17

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