Dear Users Here is the awk code for calculating end to end delay and packet delivery ratio while generating traffic from wired node and receiving packets on mobile nodes. Hopefully it will be helpful. Best Regards Shahid H Abbassi BEGIN { seqno = -1; droppedPackets = 0; receivedPackets = 0; generatedpackets = 0; count = 0; } { #packet delivery ratio if($5 == "cbr" && $1 == "+" && seqno < $12) { seqno = $12; generatedpackets++; start_time[$12] = $2; #print "start_time ="start_time[$12]"\n" $12; } else if(($7 == "cbr") && ($1 == "r")) { receivedPackets++; end_time[$6] = $2; #print "end_time ="end_time[$6]"\n" $6; } else if ($1 == "D" && $7 == "cbr" && $8 > 200){ droppedPackets++; end_time[$6] = -1; #print "end_time ="end_time[$6]"\n" $6; } } END { #print "seqno=" seqno; for(i=0; i<=seqno; i++) { if(end_time[i] > 0) { delay[i] = end_time[i] - start_time[i]; n_to_n_delay = n_to_n_delay + delay[i]; #print "delay=" delay[i]; #print "n_to_n_delay=" n_to_n_delay; count++; } else { delay[i] = 0; } } n_to_n_delay = n_to_n_delay/count; print "\n"; print "GeneratedPackets = " generatedpackets; print "ReceivedPackets = " receivedPackets; print "Packet Delivery Ratio = " receivedPackets/generatedpackets*100 "%"; print "Total Dropped Packets = " droppedPackets; print "Average End-to-End Delay = " n_to_n_delay * 1000 " ms"; print "\n"; }