> I'm trying to implement a data aggregation scheme using the collection > component in tinyos-2.x. Our scheme requires each aggregation node to wait > for all of its children to respond before performing the computation. Is it > possible for a node to know as to how many children are currently forwarding > packets through it. Also, is there a way by which their node id's may also > be known.
Collection can not tell a node about the number and id's of its children. To implement duplicate suppression, the forwarding engine keeps a small cache of sequence numbers that it has forwarded. In a similar spirit, you might be able to tweak the forwarding engine to keep a list of its children as it receives packets from its children. This will not completely solve all your problems - packets can drop. - om_p _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
