[Tinyos-help] transmission power levels

2009-11-10 Thread Akankshu Dhawan
Hi All I know we can set the transmission power levels of different motes. I want to know what is the correlation factor between the transmission power level and distance that it can reliably propagate ? I am using MICAZ motes and MTS310 sensorboard. Thanks Akankshu -- First they ignore you,

Re: [Tinyos-help] transmission power levels

2009-11-10 Thread Paul Johnson
Akankshu, It really depends on a lot of factors. An environment with lots of obstacles(trees, cubicles, buildings, cars, etc) can cause severe multipath effects which make estimation difficult. But as a start, you can look at free space propagation loss models. These will give you a

Re: [Tinyos-help] transmission power levels

2009-11-10 Thread Akankshu Dhawan
Thanks a lot Paul. That was really helpful and I now have a place to start. I am implementing some routing ideas in an application similar to SoundLocalize and needed for this. Can you also guide me with ReadStream and MicStream interfaces which might be more suited to my application since I