[Tinyos-help] About TOSH_READ_RADIO_CCA_PIN()

[Min Guo]

Which radio do you use? On cc2420 there is a CCA pin available. CCA
indicates whether the channel is clear or with energy, and surely the
neighborhood nodes affects if they are communicating in the same
channel.

On Fri, Jun 13, 2008 at 10:34 AM, JeongKwanhee <khjeong at gist.ac.kr> wrote:
> Hello, all members of TinyOS
>
>
>
> In general TinyOS, TOSH_READ_RADIO_CCA_PIN() is able to use some function if
> we want to check the state of channel.
>
> But, I don't know how to calculate whether channel is clear or not.
>
>
>
> I just think that it compares to rssi and cca.
>
> But, in this case, I think it does not consider the interference of adjacent
> nodes.
>
> For example, SINR.
>
>
>
> So, I want to check TOSH_READ_RADIO_CCA_PIN() function, and then to fix this
> function.
>
>
>
> If you know about this, please contact to me. Thank you.
>
>
>
> _________________________________________________________
>
> Kwanhee Jeong
>
> Tel: +82-62-970-3147
> Cell: +82-16-387-6870
> Fax: +82-62-970-2291
>
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