A low-complexity cooperative localization algorithm based on variational message passing in wireless networks

Weijie YUAN, Nan WU*, Bin LI, Hua WANG, Jingming KUANG

*Corresponding author for this work

Research output: Book Chapters | Papers in Conference ProceedingsConference paper (refereed)Researchpeer-review

2 Citations (Scopus)

Abstract

We consider a wireless network where target nodes aim to locate themselves. A cooperative localization algorithm can provide high accuracy by exchanging location information between nodes. In this paper, a novel distributed cooperative localization algorithm based on factor graph and variational message passing (VMP) is proposed. Compared with other message passing method, VMP algorithm features lower communication overhead. An approximation of likelihood function is made thus all messages on factor graph can be obtained in closed Gaussian forms and therefore reduce the computational complexity and communication cost. Simulation results show that the proposed method performs very close to SPAWN with much lower complexity.

Original languageEnglish
Title of host publication2014 6th International Conference on Wireless Communications and Signal Processing, WCSP 2014
PublisherIEEE
ISBN (Electronic)9781479973392
DOIs
Publication statusPublished - 18 Dec 2014
Externally publishedYes
Event2014 6th International Conference on Wireless Communications and Signal Processing, WCSP 2014 - Hefei, China
Duration: 23 Oct 201425 Oct 2014

Conference

Conference2014 6th International Conference on Wireless Communications and Signal Processing, WCSP 2014
Country/TerritoryChina
CityHefei
Period23/10/1425/10/14

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

Keywords

  • Cooperative Localization
  • Gaussian Message Representation
  • Taylor Expansion
  • Variational Message Passing

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