I'll qualify the following with "For The Most Part" since I'm not a theoretician...
All computer operations are deterministic, including (pseudo-) random number generators, so you (FTMP) will always get the same sequence of values from them. You can start at different places in the sequence by using a different starting seed. This is both good and bad, the good being that you can get exactly the same output from a system with exactly the same input, the bad being that you get exactly the same output... The interesting thing about RNGs is their distribution of values and any regularities in the sequence itself. You should be able to find many well trodden algorithms online if the current one is not good enough in those respects. To get a more "random" sequence you need to use some kind of natural input, like an open ADC or maybe the RSSI with no active transmission. Even then one can make an argument that the data is not Truly Random since everything carries some notion of state... MS Chao Sun wrote: > Hi all, > > I am in need of a random number generator for my tinyos project. > However, I found that the number generated by RandomLFSR component is > somewhat predictable. For example, it always generates the same sequence > of 16-bit numbers. Is their any better solution? Thanks. > > Sincerely, > Chao > _______________________________________________ > Tinyos-help mailing list > Tinyos-help@millennium.berkeley.edu > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help -- Platform: WinXP/Cygwin TinyOS version: 1.x, Boomerang Programmer: MIB510 Device(s): Mica2, MicaZ, Tmote Sensor board: homebrew _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
