Location tracking with directional antennas in wireless sensor networks

Chin Lung Yang, Saurabh Bagchi, William J. Chappell

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

21 Citations (Scopus)


In this paper, we investigate the use of multiple directional antennas on sensor motes for location determination and mobile node monitoring. One key aspect that distinguishes wireless sensor networks is inexpensive transmitters and receivers that still maintain acceptable connectivity. Therefore, complex RF solutions are often not applicable. We propose and demonstrate a location estimation algorithm on a single sensor node equipped with inexpensive directional antennas by measuring the received signal strength of the transmission peers. This algorithm is further applied to the dynamic tracking of a wandering mote. The location tracking error can be reduced from 30% to 16% by using moving average schemes and merging estimates from different sets of antennas. The mean error of tracking estimates can be obtained to provide the certainty of location tracking. Therefore, only a single mote with angular diverse multiple antennas is needed to determine the location of a mote without triangulation.

Original languageEnglish
Title of host publication2005 IEEE MTT-S International Microwave Symposium Digest
Number of pages4
Publication statusPublished - 2005
Event2005 IEEE MTT-S International Microwave Symposium - Long Beach, CA, United States
Duration: 2005 Jun 122005 Jun 17

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X


Other2005 IEEE MTT-S International Microwave Symposium
Country/TerritoryUnited States
CityLong Beach, CA

All Science Journal Classification (ASJC) codes

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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