[net2-wg] dhv release timeline

[Razvan Musaloiu-E.]

Hi!

On Sun, 23 Aug 2009, dangtx at pdx.edu wrote:

> There one assumption that DIP doesn't explicitly assume that is all the nodes 
> have the same number of keys. DHV requires that assumption in order to work. 
> However, both DIP and DHV don't yet explicitly address the case where nodes 
> have different number of keys/programs, which can be part of the 
> heterogeneity umbrella.

I think the assumption that all the nodes have the same keys is reasonable. 
All the nodes need to participate in dissemination of all the keys anyway. 
If the nodes only propagate the keys they care about then some updates 
might never reach some nodes.

Quick q: what is a program? :P

> About the two questions:
>
> + The size of the data for the test is 2 bytes. As long as the data can fit 
> into one tinyos message, I think the results won't be much different.

It would be good to test with some bigger data because when the data 
is small a few big Drip would also work pretty well probably. :-)

> + keys to be updated are picked randomly at compile time.
>
> I will work with Kaisen to write up an user guide and update the tutorial. If 
> there's no problems, I think TEP 118 should also be updated.
>

What updates does the TEP 118 need? That TEP is final so the only thing 
can happen with it is to deprecated. A new one would need to be created if 
changes has to be made (we are facing the same problem with TEP 105, the 
one for LPL :P).

All the best!
Razvan ME

> Quoting "Razvan Musaloiu-E." <razvanm at cs.jhu.edu>:
>
>> Hi!
>> 
>> I just briefly looked the results but it seems that DHV is a better than 
>> DIP all the time! :-)
>> 
>> Two questions: what is the size of a data associated with the key? When an 
>> update is done the new value is picked randomly?
>> 
>> --
>> Razvan ME
>> 
>> On Sat, 22 Aug 2009, Omprakash Gnawali wrote:
>> 
>>> This is great. Can I ask you and Kaisen to work together on writing a
>>> short document on how users should decide which protocol
>>> (drip,dip,dhv) to use? Research-type explanation is ok, but it is
>>> better to write an explanation for someone who wants to pick a
>>> dissemination protocol for a particular application.
>>> 
>>> You should also update this tutorial:
>>> http://docs.tinyos.net/index.php/Dissemination
>>> 
>>> - om_p
>>> 
>>> On Sat, Aug 22, 2009 at 2:00 AM, <dangtx at pdx.edu> wrote:
>>>> I have done the following cvs commit
>>>> 
>>>> + add tos/lib/net/dhv
>>>> + add apps/tests/TestDhv
>>>> + update appds/tests/TestDissemination/Makefile with flag for dhv
>>>> 
>>>> Also please refer to
>>>> http://web.cecs.pdx.edu/~dangtx/pub/ewsn09/DIPnDHV.pdf for the
>>>> protocol tests.
>>>> 
>>>> 
>>>> Thanh
>>>> 
>>>> 
>>>> 
>>>> 
>>> 
>> 
>> 
>
>
>