On Wednesday 08 February 2006 16:29, Sita S. Krishnakumar wrote: > I am not sure I understand what you mean by: > > If you increase the range at witch you define the signal to > > be receiveable you have to lower RXTresh because it needs to be lower > > than the signal at this point. > > I thought RXThresh is the threshold until which a packet can be received > by a node ie. it is the reach of the node. If you want it to receive > packets from a farther distance, should the threshold be greater?
Usually you define Pt_, RXTresh and then compute the maximum possible transmission range. But if you need a different range you set it fix and compute either Pt_ or RXTresh while keeping the other fix. For a longer distance you need either a higher Pt_ (stronger sender) or lower RXTresh (more sensitive receiver). For the two-ray-ground model it is very easy to compute these values. Take a look into the code and you will find the equation. Daniel. -- Dipl.-Inf. Daniel Mahrenholz, University of Magdeburg, Germany Homepage: http://ivs.cs.uni-magdeburg.de/~mahrenho
