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| n |
NS 2
Implementation (based on DSR)
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Ø |
Two
parameters and one counter:
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§ |
the
medium usage threshold
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the
measurement time period
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overThresholdCounter
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Ø |
Functions:
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For
the router: Upon receiving a route request, check medium usage
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in
past measurement period. If over medium usage threshold,
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increase
the overThresholdCounter by one.
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For
the sender: Upon receiving the route replies, the sender chooses
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the
route with the smallest overThresholdCounter. If more than one
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path
has the same smallest overThresholdCounter, the one with fewer
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hops
is chosen. If more than one path has the same
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overThresholdCounter
and the same number of hops, the sender
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randomly
chooses one.
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