Open AccessExperimental evaluations of RSS threshold‐based optimised DV‐HOP localisation for wireless ad‐hoc networks
Author(s) -
Maung N.A.M.,
Kawai M.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.1541
Subject(s) - hop (telecommunications) , wireless ad hoc network , rss , computer network , computer science , wireless , mobile ad hoc network , wireless network , telecommunications , operating system
DV‐HOP is a well‐known connectivity‐based range‐free scheme which offers a cost‐effective localisation solution for resource‐constrained wireless ad‐hoc and sensor networks. However, it generates a prominent amount of error with small‐scale networks due to its multi‐hop nature. To minimise the error and to make it applicable to both small‐ and large‐scale networks, it is proposed to configure the connectivity of the network using available received signal strength (RSS) measurements and a predefined RSS threshold. An approximate formula for the optimal RSS threshold value that shows the minimum amount of error for a particular network to be localised is derived as a function of the total number of nodes and the network size. Experimental results confirm that utilising the proposed RSS threshold‐based connectivity configuration significantly improves the localisation accuracy of DV‐HOP in a practical environment without any extra hardware.