Ad Hoc Wireless Sensor Localization Problem
been used recently for solving
wide range of Euclidean
distance geometry problems.
the recent applications a
re ad hoc wireless sensor
networks used for monitoring enviromental information (temperature, lights, etc.).
ypical networks of this type consist of large number of densely deployed sensor nodes
ich gather local data and communicate with other nodes wi
thin small range. Since the
sensor data from these nodes refer to certain geographical location, the knowl
each sensor position is imperative. Generally, the use of GPS is not an option due to the
power and cost limitation for each sensor. Therefore
Wireless Sensor Localization
the positions of all
sensors based on
namely the exact locations of only a few sensors (called anchor sensors) and the mutual
between pairs of sensors that are wit
hin radio distance. Recent studies show
how a relaxation of this problem
be modeled as a semi
definite optimization problem
which can be efficiently solved. We will discuss the underlying model in detail and also
some numerical examples.