sg4::Actor::create("sender", station1, sender, mailbox, 1e7);
sg4::Actor::create("receiver", station2, receiver, mailbox);
/* Declare that the stations are not at the same distance from their AP */
sg4::Actor::create("sender", station1, sender, mailbox, 1e7);
sg4::Actor::create("receiver", station2, receiver, mailbox);
/* Declare that the stations are not at the same distance from their AP */