[Tinyos-help] Packet error probability in CpmModelC according to packet size

[Alban Hessler]

Thank you for that piece of information information. Is there any
chance for me to modify the parameters so that it fits other payload
size? From the paper on noise modelization for Tossim 2, it is not so
clear to me where you got that curve from (it seems it's through your
own experiments?)

Best regards,

Alban



2009/2/4 Philip Levis <pal at cs.stanford.edu>:
>
> On Feb 2, 2009, at 1:48 AM, Alban Hessler wrote:
>
>> Hi,
>>
>> Another question about the CpmModel used in TOSSIM. It seems that the
>> Prrr function used in TOSSIM does not take into account the packet
>> length. Is that correct?
>>
>> Then, which data_length (or full length) fits the Prr function best to?
>>
>> Also, from my understanding of the CpmModelC code, the length of
>> transmission is taken into account for collisions (but not for
>> fading).
>
> The function is for packets with 28 bytes of payload.
>
> Phil
>