76 lines
2.2 KiB
Perl
Executable file
76 lines
2.2 KiB
Perl
Executable file
#!/usr/bin/perl
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$num = 0;
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$override_range = $ARGV[0];
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# Go through the .csc file; find the transmission range and all the
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# nodes' x and y coordinates.
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while(<STDIN>) {
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if(/\<transmitting_range\>([\d.]+)\<\//) {
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$range = $1;
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}
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if(/\<success_ratio_rx\>([\d.]+)\<\//) {
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$success_ratio_rx = $1;
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}
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if(/\<x\>([\d.]+)\</) {
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$x[$num] = $1;
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}
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if(/\<y\>([\d.]+)\</) {
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$y[$num] = $1;
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$num++;
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}
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}
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if($override_range) {
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$range = $override_range;
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}
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$no_neighbors = 0;
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$all_neighbors = 0;
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$total_neighbors = 0;
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# Go through all nodes, find how many are in their range and compute
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# the average reception probability. Make sure we only count each neighbor once.
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for($i = 0; $i < $num; $i++) {
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$neighbors = 0;
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for($j = 0; $j < $num; $j++) {
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if($i != $j) {
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$distance2 = ($x[$i] - $x[$j]) * ($x[$i] - $x[$j]) +
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($y[$i] - $y[$j]) * ($y[$i] - $y[$j]);
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$range2 = $range * $range;
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if($distance2 <= $range2) {
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$neighbors++;
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$ratio = $distance2 / $range2;
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if($ratio > 1) {
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$reception_probability = 0;
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} else {
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$reception_probability = 1 - $ratio * (1 - $success_ratio_rx);
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}
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$reception_probability_sum += $reception_probability;
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}
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}
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}
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if($neighbors == 0) {
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$no_neighbors++;
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}
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if($neighbors == $num - 1) {
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$all_neighbors++;
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}
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$total_neighbors += $neighbors;
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}
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print "$num $range " . ($total_neighbors / $num) .
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" " . ($no_neighbors / $num) .
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" " . ($all_neighbors / $num) .
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" " . ($reception_probability_sum / $total_neighbors) .
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"\n";
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print "# Range $range number of nodes $num override range $override_range\n";
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print "# Num nodes $num, average neighbors " . ($total_neighbors / $num) .
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", $no_neighbors nodes (" . (100 * $no_neighbors / $num) .
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"%) have no neighbors, $all_neighbors (" . (100 * $all_neighbors / $num) .
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"%) have all other nodes as neighbors\n";
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print "# Average reception probability " .
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($reception_probability_sum / $total_neighbors) . "\n";
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