Introduction - If you have any usage issues, please Google them yourself
Mine tunnels are extensive labyrinths with
irregularly-shaped walls, in which a hundreds of employees are
working on extraction of valuable ores and minerals. Since the
working conditions are extremely hazardous, a (wireless) sensor
network (WSN) is deployed to increase the safety in tunnels.
One of the most important applications of WSN is to track the
personnel, mobile equipment and vehicles. However, the stateof-
the-art algorithms assume that the positions of the sensors
are perfectly known, which is not necessarily true due to the
imprecise placement and/or possible sensor drops.