Range-free Localization Algorithms in Wireless Sensor Networks

摘要

Wireless Sensor Networks, an emerging technology, have been used in various fields for monitoring and tracking. Because of its application, the problem of localization is extremely important. Although a lot of algorithms have been presented recently, how to localization is a challenge. This paper describes how to classify localization algorithms and discusses the principles and characteristics of some localization approaches of range-free, such as DV-Hop, APIT, etc. The directions of how to improve DV-Hop algorithm is introduced as well.