An improved DV-Hop localization algorithm for wireless sensor networks

Wireless sensor networks have attracted great interest in the last decade, and have provided solutions in a growing number of applications. The location of sensors is a major issue in these networks. Many localization algorithms have been proposed and can be categorized into two families: range-based and range-free algorithms. In this paper, the localization algorithm DV-Hop is improved in order to minimize the estimation error and thus obtain better localization accuracy of sensor nodes. Simulations have been conducted and results are reported to show the efficiency of the enhanced version of DV-Hop.