On Tue, Apr 28, 2009 at 9:34 AM, Rémi Villé <[email protected]> wrote: > To reformulate my problem I will take an example : > > A sensor have the choice between two parents to connect itself to a > collection data path. > By default it chooses the bad parent in the sense that this one reads very > different datas. (assuming that a good parent is a sensor that read similar > datas) > > So what I would like to do is that when the sensor overhear (snoop) a data > message from the good potential parent, it indicates to the Ctp mechanism > that it should consider this sensor as a better parent than the current one. > > It would be like not only taking into consideration ETX but this global > behavior too. > > Is there any way to perform that ?
You will have to incorporate sensor data into your routing metric. You might need to modify what a node advertises. You might be able to modify LEEP to do this. You can take a look at tos/lib/net/4bitle. You will need to augment the table lookup interface so that you can get data values in addition to the link qualities. Then you should change the router tos/lib/net/ctp/CtpRoutingEngineP.nc to make path selection decision based on the sensor values. So yes, it can be done. The standard code in the repository does not do this. You will need to change it the way I suggested or in some other ways so that you can make these different type of routing decisions. - om_p _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
