[Tinyos-devel] Tossim - node receives packet althought sending other

Lumir Honus foldus at gmail.com
Wed Feb 11 06:30:46 PST 2009


1->0 starts at 107522761719, finishes at 107542750616
3->1 starts at 107540209259, finishes at 107560198156

collision is from 107540... to 107542....

I presume that radio on mote 1 is busy while sending in whole interval,
and for successful receive has to be free from the beginning. (from
107540209259).


On Wed, Feb 11, 2009 at 3:14 PM, Philip Levis <pal at cs.stanford.edu> wrote:
>
> On Feb 11, 2009, at 10:49 AM, Lumir Honus wrote:
>
>> Hello,
>>
>> I'm sending my post also here, as I beleive it is internal bug in tossim.
>> If not, I apologize in advance.
>>
>> I found the problem (possibly bug) in CpmModelC (in tossim). I have
>> simple network topology consisting of 4 nodes.
>>
>> Node 1 sends packet to 0, the transmit finishes at 107542750616.
>> Before it is finalized, node 3 sends at 107540209259 a packet to 1.
>
> The text below does not show this. They are 10754.... and 10756....
>
>>
>> DEBUG (1): Node 1 transmitting to 0, finishes at 107542750616.
>
> ....
>>
>> DEBUG (3): Enqueing reception event for 1 at 107560198156 with power
>> -68.060000.
>>
>
> 107542750616
> 107560198156
>
> Phil
>



-- 
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S pozdravem
        Lumir Honus


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