[Tinyos-help] wireless communication speed

[João Paulo Amaro da Costa Luz Carneiro]

Thanks, I will try it and post the results later.
What is the default MAC protocol for the IRIS mote in tinyos2.1? B-MAC  
or some combination with other?
Regards,

Joao

On 2009/03/08, at 00:47, Omprakash Gnawali wrote:

> On Sat, Mar 7, 2009 at 1:35 PM, Miklos Maroti <mmaroti at math.u-szeged.hu 
> > wrote:
>> Hi Joao,
>>
>> On Sat, Mar 7, 2009 at 10:31 PM, João Paulo Amaro da Costa Luz
>> Carneiro <jcarneiro at netcabo.pt> wrote:
>>> I do want to send large amounts of data that are sliced to fit small
>>> packets, and so my main objective is to send them as soon as  
>>> possible using
>>> ctp.
>>> My reason to use CTP is because my application is exactly the  
>>> typical
>>> scenario of some nodes sensing the data and sending to one or more  
>>> sinks in
>>> a multihop network.
>>
>> Maybe CTP can be configure to achieve better performance. An
>> alternative is to you the flood routing engine developed for tinyos
>> 1.x and probably ported to tinyos 2.x, which might get the  
>> performance
>> what you need. Janos might be able to help you out with this.
>>
>>> Miklos, can you tell me about the slotted mac energy performance?  
>>> Is it any
>>> different from the default MAC?
>>
>> Pretty much the same. However, it can achieve higher number of  
>> packets
>> / seconds if multiple nodes are sending messages concurrently.
>>
>
> You can tweak the constants defined in CtpForwardingEngine.h. There
> are comments there that explain what those constants are. If you have
> slotted MAC, you can probably make a lot of the waits 0.
>
> - om_p