Hi there, Though I had problems by just using "on/off" command of the mobile nodes, I finally used a tricky way to "shut down" some nodes at certain time:
In mac/mac-802_11.cc, I added a few lines in the beginning of transmit() and recv(), which stop transmitting/receiving the packet depending on the clock time and the id of the node which is calling this function. Though I have to re-make ns2, it does works fine for me. Hope it helps. Ryan
