I understood how to generate the topology file, my doubt now is: Which command should I use to input these values?
On Fri, Jun 6, 2008 at 11:21 AM, Daniel Pereira <[EMAIL PROTECTED]> wrote: > I didn't understand how to configure the network topology for TOSSIM. > The snippet of Python code create seven nodes. > for i in range(0, 7): > t.getNode(i).createNoiseModel() > > How can I relate this nodes with the network topology? > Should I set the Channel, Radio and Topology parameters in the Python? > > Thanks all > > > > > On Thu, Jun 5, 2008 at 12:14 PM, Tal Rusak <[EMAIL PROTECTED]> wrote: >> Hi, >> There are two components to the link model in TOSSIM 2.0.2: noise and >> gain. Noise is the external interference and noise from sources other >> than the TinyOS network, which gain is the strength at which nodes in >> the network can hear packets that other nodes send. The probability >> of receiving a packet is given by the signal to noise ratio, which is >> gain - noise in the dB scale considered here. This is explained in >> http://sing.stanford.edu/pubs/ipsn07-noise.pdf >> TOSSIM currently considers that gain is constant per node pair, and >> network topologies can be constructed using the tool discussed at >> http://www.tinyos.net/tinyos-2.x/doc/html/tutorial/usc-topologies.html >> The TOSSIM tutorial shows how to use python to parse this tool's output >> and to input the gain values to the simulator. Search for "topo.txt" in >> this entry: >> http://docs.tinyos.net/index.php/TOSSIM#Configuring_a_Network >> Regarding the noise values, you can collect noise samples from your >> environment using >> tinyos-2.x-contrib/stanford-sing/apps/RssiSample >> To create an artificial "low noise" environment, you can create a >> text file with very low values. If your values in the noise file are >> all at least 14 below the values used for gain, then all packets are >> received. Just be sure to have at least 100 entries in the file. >> >> Thanks, >> Tal >> >>> Hello >>> >>> How can I use a topology file in TOSSIM >>> (http://www.tinyos.net/dist-2.0.0/tinyos-2.x/doc/html/tutorial/usc-topologies.html) >>> once I have the .out >>> files? >>> >>> The Tossim wiki show how to integrate a text file noise model like >>> heavy-meyer but I didn't find how to use this outpouts. >>> >>> best regards >>> >>> _______________________________________________ >>> Tinyos-help mailing list >>> [email protected] >>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>> >> >> >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> > _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
