wireless sensor network clustering

[bvs]

Hi all,

I am doing a simple project in wireless sensor networks, adding security against wormhole attacks.

The requirements are:

1. need to position the sensor nodes
2. implement cluster
3. select a few nodes from the overlapping region between the clusters.

I have an idea of implementing step1 as a grid where each sensor node is equidistant from its immediate neighbors. But I am not sure if this will work while implementing step3, because I am not able to find any sensor nodes in the overlapping region.

Please help me out. Any help/suggestion is appreciated.

Thanks.