Re: [dtn-interest] New routing solutions?

[Jéferson Campos Nobre <[e-mail]>]

Hi there.
It would be good to have a generalized framework, e.g. to evaluate
different routing algorithms.
Besides that, I think it is a nice way to realize how much interest
the DTNRG attracts after the DTNWG start.
Cheers.

Jéferson Campos Nobre
PhD Student
Computer Networks Group -  Institute of Informatics
Federal University of Rio Grande do Sul
http://www.inf.ufrgs.br/~jcnobre

On Fri, Nov 21, 2014 at 8:59 PM, Birrane, Edward J.
<[e-mail]> wrote:
> Waldir, Scott,
>
>
>
>   I have been looking at the idea of contact inference engines for some time
> and I think there is something usable there. I’ve proposed some initial
> inference adapters relating to PROPHET and a generalized routing framework
> built on a modified contact graph.  I would be happy (and excited) to
> continue this research with anyone interested and think it could be a
> valuable undertaking within DTNRG.
>
>
>
> -Ed
>
>
>
> ---
> Ed Birrane
>
> Principal Professional Staff, Space Exploration Sector
>
> Johns Hopkins Applied Physics Laboratory
> (W) 443-778-7423 / (F) 443-228-3839
>
>
>
>
> From: dtn-interest [mailto:[e-mail]] On Behalf Of
> Burleigh, Scott C (312B)
> Sent: Friday, November 14, 2014 8:30 AM
> To: waldir moreira; [e-mail]
>
>
> Subject: Re: [dtn-interest] New routing solutions?
>
>
>
> Yes, that's just the sort of ecosystem I am hoping for.
>
>
>
> Scott
>
> ________________________________
>
> From: dtn-interest [[e-mail]] on behalf of waldir
> moreira [[e-mail]]
> Sent: Friday, November 14, 2014 4:50 AM
> To: [e-mail]
> Subject: Re: [dtn-interest] New routing solutions?
>
> Thats right, Scott.
>
>
>
> I think if we worked the generic routing framework as mentioned by Anders,
> we would certainly have an idea of the existing core routing algorithms that
> could be added to ION as to allow the feeding of the contact plan.
>
> dLife, SPRINT, SCORP, .. do consider the "ongoing basis" as to have a
> snapshot of the actual moment regarding relevant contact (considering the
> different levels of social interaction between nodes). This could probably
> make the collection of contact inference engines to allow the extended-CGR.
>
> The outcome would be a 'universal' routing solution that could be employed
> in sparse and dense DTN scenarios.
>
> Waldir
>
>> From: [e-mail]
>> To: [e-mail]
>> Date: Thu, 13 Nov 2014 18:58:51 +0000
>> Subject: Re: [dtn-interest] New routing solutions?
>>
>> Thanks, Stephen, that will be extremely helpful when we get to the point
>> of having something to test.
>>
>> The other angle, which I thought Waldir was talking about, is development
>> of software that infers somewhat-probable contacts (from social media
>> interactions, contact history, whatever) on an ongoing basis, that could be
>> integrated with a CGR-based forwarding daemon. ION provides an open API for
>> inserting contacts into a node's contact plan, so I think this interface can
>> be kept pretty clean. Notionally, I would be glad to see any number of
>> clever contact inference engines operating concurrently and cooperating in
>> keeping a given node's contact plan as comprehensive and accurate as
>> possible, so that the extended-CGR forwarding based on that probabilistic
>> time-varying topology information can be made as efficient as possible.
>>
>> Scott
>> ________________________________________
>> From: Stephen Farrell [[e-mail]]
>> Sent: Thursday, November 13, 2014 9:11 AM
>> To: Burleigh, Scott C (312B); [e-mail]
>> Subject: Re: [dtn-interest] New routing solutions?
>>
>> On 13/11/14 16:57, Burleigh, Scott C (312B) wrote:
>> > Yes, for the purposes of the development I was talking about it would
>> > be great to have a really capable source of somewhat-probable
>> > contacts.
>>
>> We put all the 2010 N4C contacts up on a web server. [1]
>> Someone (likely Elwyn or me;-) would probably have to help
>> deciphering formats but there's a bunch of them there and
>> some pictures [2] to help (and the code to generate all
>> those from DTN2 logs).
>>
>> We also have some others but 2010 is probably the most useful
>> set we have for remote area scenarios.
>>
>> S.
>>
>> [1] http://dtn.dsg.cs.tcd.ie/n4c-summer10/
>> [2] http://down.dsg.cs.tcd.ie/summer10/contacts/pairs/pairs.html
>>
>> >
>> > Scott ________________________________ From: waldir moreira
>> > [[e-mail]] Sent: Thursday, November 13, 2014 8:35
>> > AM To: Burleigh, Scott C (312B); [e-mail] Subject: RE:
>> > [dtn-interest] New routing solutions?
>> >
>> > Thanks for your reply, Scott.
>> >
>> > So in other words, you think we should mature more the inference from
>> > social-based contacts, as to allow proper application to the CGR
>> > contact plan?
>> >
>> > Waldir
>> >
>> >
>> > ________________________________ From: [e-mail]
>> > To: [e-mail] Date: Wed, 12 Nov 2014 20:15:53 +0000
>> > Subject: Re: [dtn-interest] New routing solutions?
>> >
>> > HI, Waldir. One possibility: we are starting to look at the
>> > possibility of basing a generic DTN routing framework on Contact
>> > Graph Routing, by extending the CGR notion of a "contact plan" to
>> > include not only scheduled contacts but also predicted contacts (that
>> > is, enabling association of a probability less than 1.0 with an
>> > identified contact). We think we've got a reasonable concept of how
>> > to use somewhat-probable contacts to direct forwarding efficiently in
>> > a general way, but that leaves wide open the question of how to
>> > populate the contact plan with those somewhat-probable contacts; the
>> > problem of inferring such things from social contacts or patterns of
>> > movement or whatever remains less-than-comprehensively solved.
>> >
>> > Scott ________________________________ From: dtn-interest
>> > [[e-mail]] on behalf of waldir moreira
>> > [[e-mail]] Sent: Wednesday, November 12, 2014 4:16 AM To:
>> > [e-mail] Subject: [dtn-interest] New routing solutions?
>> >
>> > Dear colleagues,
>> >
>> > Recently our draft on social-aware opportunistic routing has expired
>> > (http://www.ietf.org/archive/id/draft-moreira-dlife-04.txt).
>> >
>> > Despite of a first interest from the DTNRG by the time of its first
>> > appearance, our draft has not received any technical feedback as
>> > expected (it remained as individual submission and no stream
>> > defined).
>> >
>> > Thus, the intention of this email is to check with my colleagues
>> > whether there is any interest from the DTNRG (or its IETF WG
>> > counterpart) on new routing solutions.
>> >
>> > I recall that some emails were exchanged about a generic framework to
>> > allow better development of new solutions, but that didnt go far as
>> > well.
>> >
>> > Be it for new routing approaches or for a generic routing framework,
>> > we would be more than happy to contribute if there is still any
>> > interest from this RG in such direction.
>> >
>> > Best regards,
>> >
>> > Waldir Aranha Moreira Junior, Ph.D. Researcher at the Association for
>> > Research and Development in Cognition and People Centric Computing -
>> > COPELABS Invited Professor at University Lusofona - ULHT/ULP External
>> > collaborator of the Research Group on Computer Networks and
>> > Multimedia Communications - GERCOM/UFPA LinkedIn
>> > profile<http://www.linkedin.com/in/waldirmoreira>
>> >
>> > _______________________________________________ dtn-interest mailing
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>> > https://www.irtf.org/mailman/listinfo/dtn-interest
>> >
>> >
>> >
>> > _______________________________________________ dtn-interest mailing
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