Localization of Large-Scale Wireless Sensor Networks Using Niching Particle Swarm Optimization and Reliable Anchor Selection

Algorithm 2

Reliable reference nodes selection.

Input: unknown node and its neighbour references set ,

Output: selected reference nodes set

 Compute   for all

 Compute for all  

 ,  

 while   do

  if   is not collinear with any two elements of   then

  if    then

  end if

  end if

 end while

 return