Network Simulation on NS-2

Hi, I need to have a network simulation on (NS-2). The detail is as follow: we'll be using the wireless network (P2P Mobile devices) with double layered approach (super nodes & sub nodes) make the cluster for the nodes such that each cluster has a super cluster (Super node is selected from among all the nodes such that the movement of the node is least as compare to the rest of the nodes in the cluster - will provide the formula for this) each super node will have a table that'll contain the list of files for all the node in that cluster. i.e: <NodeID, FileID>, so whenever a node requests for a file, the request will directly go to the super node where super node will return the NodeID for that particular request(FileID). If the file does not exist in the super Node, super node will send request to the adjacent cluster via relay node (node in b/w both clusters) The Node may leave or join at any time, So, need to re generate the file table periodically.