Phitsanu Eamsomboon schrieb: > Dear All > My name is Phitsanu from Thailand , I to do my research about ad > hoc network , In my research having 100 mobile nodes but I want to set 50 > nodes can communicated in 250 m and another 50 node communicated in 500 node > . How can I set in tcl for NS-2 ? > > Use antennas with different gains. Change the global settings for the antenna gain before you create a node. That means, set it to (for example) to 2dBi for the first 50 nodes and 8dBi for the next 50. Use the propagation.cc utility to calculate the exact parameters (search the list for details).
But be aware, the transmission range depends on both, the sender and the receiver. That means, if you have two kinds of nodes (A and B) you get 3 different combinations and hence communication ranges (e.g. A->A: 250m, A->B: 400m, B->B: 500m). Hope this helps, Daniel. -- Dr.-Ing. Daniel Mahrenholz rt-solutions.de GmbH Oberländer Ufer 190a D-50968 Köln Web: www.rt-solutions.de rt-solutions.de networks you can trust.
