uint32_t totalPackets = DynamicCast<PacketSink>(apps.Get(0))->GetTotalRx();
	double throughput = (totalPackets-numPackets)*8/(1000000.0);
	Vector pos = GetPosition(node);; //position of mobile node
	std::cout << pos.x  << "\t" << throughput << std::endl;


    Simulator::Schedule(Seconds (1.0), &ThroughputPerSecond, apps , totalPackets ,  node);