Localization in 3D Wireless Sensor Networks with Obstacle Consideration

Algorithm 1

Region identification

Input: Target region , positions of beacons, position of obstacles

Output: Beacons reachability to nodes

forall node networkdo

  initialize to

end

forall node networkdo

  foreach do

   ifnode is not in shadowing region of

    then

    Set to

   end

  end

end