A robust deterministic approach to node localisation using NLOS signal

Kaushik Mondal, Partha Sarathi Mandal, Bhabani P. Sinha

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Localisation in an urban area is a challenging problem due to the blocking of line-of-sight (LOS) paths and the multipath effect arising out of reflection, scattering and diffraction of signals. We propose a technique to localise sensor nodes based on receiving reflected signals transmitted by anchor nodes. This method can calculate the position of a node by receiving non-line-of-sight (NLOS) signals in presence of range measurement error with better accuracy compared to existing works. We, however, assume that a signal is reflected at most once before reaching a node. While a network is growing, wrong position information may get assigned to some nodes by accident. According to our robust localisation in NLOS, an anchor can detect inconsistency of the wrong position information with the help of three reply signals from a particular node via different paths.

Original languageEnglish
Pages (from-to)263-290
Number of pages28
JournalInternational Journal of Communication Networks and Distributed Systems
Issue number3
StatePublished - 1 Jan 2018
Externally publishedYes


  • Angle of arrival
  • AoA
  • Communication networks
  • Distributed systems
  • Localisation
  • NLOS signal
  • Time of arrival
  • ToA
  • Wireless sensor networks

ASJC Scopus subject areas

  • Computer Networks and Communications


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