Scripts for Getting Results Main script for running the complete simulation run-dsr.sh
#!/bin/bash for i in 20 do for j in 120 do clear rm temp.tr rm trace2.nam ./ns compare.tcl -scen movement/scen-50-$j -tfc traffic/cbr-50-$i -tr temp.tr -rpr 1; awk -f parameters.awk temp.tr awk -f Throughput.awk temp.tr awk -f Jitter.awk temp.tr done done AWK script to measure send, receive, routing and drop packets. Packet delivery ratio, routing overhead, normalize routing load, average end to end delay. parameters.awk BEGIN { sends=0; recvs=0; routing_packets=0.0; droppedBytes=0; droppedPackets=0; highest_packet_id =0; sum=0; recvnum=0; } { time = $3; packet_id = $41; # CALCULATE PACKET DELIVERY FRACTION if (( $1 == "s") && ( $35 == "cbr" ) && ( $19=="AGT" )) { sends++; } if (( $1 == "r") && ( $35 == "cbr" ) && ( $19=="AGT" )) { recvs++; } # CALCULATE DELAY if ( start_time[packet_id] == 0 ) start_time[packet_id] = time; if (( $1 == "r") && ( $35 == "cbr" ) && ( $19=="AGT" )) { end_time[packet_id] = time; } else { end_time[packet_id] = -1; } # CALCULATE TOTAL DSR OVERHEAD if (($1 == "s" || $1 == "f") && $19 == "RTR" && $35 =="DSR") routing_packets++; # DROPPED DSR PACKETS if (( $1 == "d" ) && ( $35 == "cbr" ) && ( $3 > 0 )) { droppedBytes=droppedBytes+$37; droppedPackets=droppedPackets+1; } #find the number of packets in the simulation if (packet_id > highest_packet_id) highest_packet_id = packet_id; } END { for ( i in end_time ) { start = start_time[i]; end = end_time[i]; packet_duration = end - start; if ( packet_duration > 0 ) { sum += packet_duration; recvnum++; } } delay=sum/recvnum; NRL = routing_packets/recvs; #normalized routing load PDF = (recvs/sends)*100; #packet delivery ratio[fraction] printf("send = %.2f\n",sends); printf("recv = %.2f\n",recvs); printf("routingpkts = %.2f\n",routing_packets++); printf("PDF = %.2f\n",PDF); printf("NRL = %.2f\n",NRL); printf("Average e-e delay(ms)= %.2f\n",delay*1000); printf("No. of dropped data (packets) = %d\n",droppedPackets); printf("No. of dropped data (bytes) = %d\n",droppedBytes); } AWK script for calculate the throughput Throughput.awk BEGIN { recvdSize = 0 startTime = 1e6 stopTime = 0 } { # Trace line format: normal if ($2 != "-t") { event = $1 time = $2 if (event == "+" || event == "-") node_id = $3 if (event == "r" || event == "d") node_id = $4 flow_id = $8 pkt_id = $12 pkt_size = $6 flow_t = $5 level = "AGT" } # Trace line format: new if ($2 == "-t") { event = $1 time = $3 node_id = $5 flow_id = $39 pkt_id = $41 pkt_size = $37 flow_t = $45 level = $19 } # Store start time if (level == "AGT" && (event == "+" || event == "s") && pkt_size >= 512) { if (time < startTime) { startTime = time } } # Update total received packets' size and store packets arrival time if (level == "AGT" && event == "r" && pkt_size >= 512) { if (time > stopTime) { stopTime = time } # Rip off the header hdr_size = pkt_size % 512 pkt_size -= hdr_size # Store received packet's size recvdSize += pkt_size } } END { printf("Average Throughput[kbps] = %.2f\t\t StartTime=%.2f\tStopTime=%.2f\n",(recvdSize/(stopTime-startTime))*(8/1000),startTime,stopTime) } AWK script for compute delay jitter Jitter.awk BEGIN { num_recv=0 } { # Trace line format: normal if ($2 != "-t") { event = $1 time = $2 if (event == "+" || event == "-") node_id = $3 if (event == "r" || event == "d") node_id = $4 flow_id = $8 pkt_id = $12 pkt_size = $6 flow_t = $5 level = "AGT" } # Trace line format: new if ($2 == "-t") { event = $1 time = $3 node_id = $5 flow_id = $39 pkt_id = $41 pkt_size = $37 flow_t = $45 level = $19 } # Store packets send time if (level == "AGT" && sendTime[pkt_id] == 0 && (event == "+" || event == "s") && pkt_size >= 512) { sendTime[pkt_id] = time } # Store packets arrival time if (level == "AGT" && event == "r" && pkt_size >= 512) { recvTime[pkt_id] = time num_recv++ } } END { # Compute average jitter jitter1 = jitter2 = tmp_recv = 0 prev_time = delay = prev_delay = processed = 0 prev_delay = -1 for (i=0; processed<num_recv; i++) { if(recvTime[i] != 0) { tmp_recv++ if(prev_time != 0) { delay = recvTime[i] - prev_time e2eDelay = recvTime[i] - sendTime[i] if(delay < 0) delay = 0 if(prev_delay != -1) { jitter1 += abs(e2eDelay - prev_e2eDelay) jitter2 += abs(delay-prev_delay) } prev_delay = delay prev_e2eDelay = e2eDelay } prev_time = recvTime[i] } processed++ } } END { printf("Jitter1 = %.2f\n",jitter1*1000/tmp_recv); printf("Jitter2 = %.2f\n",jitter2*1000/tmp_recv); } function abs(value) { if (value < 0) value = 0-value return value } Mohammed AbuHajar ashwin krishna <[EMAIL PROTECTED]> wrote: hi sir i am new to ns2 and i am doing a project on routing protocols i nned to measure the throughput, time delay,jitter,shortestpath to measure the performance of a adhoc network so icould be thank full to u if u can provide the the tcl script to run the simulation and any previous work so that it can be help full thanking you krishna --------------------------------- Looking for a deal? 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