A Hybrid Range-free Localization Algorithm for ZigBee
Wireless Sensor Networks
Tareq Alhmiedat1 and Amer Abu Salem2
1Department of Information
Technology, University of Tabuk, Saudi Arabia
2Department of Computer Science, Zarqa University, Jordan
Abstract: Localization
is one of the key aspects of wireless sensor networks (WSNs) that has attracted
significant research interest. A wide variety of proposed approaches regarding
the research topic has recently emerged; however, the majority of the existing
approaches are limited by at least one of the following restrictions:
inaccuracy, high cost, fast energy depletion, inappropriate indoor performance,
or the requirement of an additional positioning hardware. In this paper, we
present the research and development of a hybrid range-free WSN localization
system, using the hop-count and received signal strength (RSS) methods. The
proposed system is reliable and efficient indoors in terms of localization
accuracy, cost and power consumption. Reference and target nodes have been
designed and implemented, while real experiments have been carried out to
assess the proposed system’s efficiency.
Keywords: Localization, Tracking, ZigBee,
Wireless Sensor Networks (WSNs).
Received February 13, 2017; accepted May 10, 2017