[ns] carrier sense

Mayur Mansukhlal Vegad mayur at ee.iitd.ac.in
Sun Mar 1 01:06:53 PST 2009


NAV is not a table. For a particular node its NAV is a simple variable
used to store a number which is the duration (in microseconds) for which
it freezes its backoff downcounting, it it is ON. You can know this value
by accessing the nav_ (a double type of variable of Mac802_11 class in
mac/mac-802_11.h).

Hope this helps
Mayur
>
>
> hi all
>
>  it's true the node uses the carrier sense before sending the data. as per
> my understanding the NAV for the nodes in the carrier sense rage is
> updated. Nodes uses this nav to determine the time after which the it is
> permited to send the data. my promblem is to use the entries in nav for
> my work.how can i access the nav table.
>
> Neeraj Gupta
> Assistant Professor
> HOD, CSE & IT Department
> Hindu College of Engineering
> Sonepat
>



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