[ns] Uni directional links in dsr

HI I want to simulate effects of unidirectional links in dsr. As it uses mac 802.11 ,how can i simulate unidirectinal links between nodes What necessary changes i require to make Can anybody help on this THanks Kumar

[ns] Can we change the transmission range of the node during the simulation?

Hi I like to know how can we change transmission range between nodes to different values in dsr?? I like to know is it possible to do that Also NOAH routing agent , i got an error saying wrong routing agent!!! can anyone help me on this