Subject: [dtn-interest] New routing proposal for DTNRG: draft-moreira-dlife-00.txt

From: Paulo Mendes <[email-masked]>
Date: Mon, 9 Jul 2012 11:22:34 +0100

Dear all

As you can see below, on Jul 7th we submitted a version -00 of a new opportunistic routing agent for the DTN architecture. The new proposal, called dLife, aims to exploit social information (contact duration in specific daily time periods) to make forwarding decision that will be aware of human behaviour.

In what concerns performance, we have some publications (references in the draft) that show dLife behaviour in ONE with simulated scenarios and real traces.

 The current implementation of dLife is written in Java for the version 1.4.1 of the Opportunistic Network Emulator (ONE). A second implementation of dLife is being done in C# using the Monodroid development environment, aiming to construct a modular design, since its inception, for operation over multiple platforms: Windows, Linux, Android and iOS.

Since the April 2012, a DTN test-bed is being created in the Amazon region for testing of DTN routing solutions, in the context of the DTN-Amazon project, having the University Lusofona and University Federal of Para as current partners. Initial tests of the dLife implementation are being prepared, starting with a controlled test-bed with 4 Android devices using a text messaging application for operation testing.

We aim to present dLife in the Vancouver meeting in order to propose it to be accepted as a DTNRG proposal. Until then, let us know if you have any comments on the document.

Regards
Paulo Mendes

Begin forwarded message:

> From: [email-masked]
> Subject: New Version Notification for draft-moreira-dlife-00.txt
> Date: July 7, 2012 3:05:16 PM GMT+01:00
> To: [email-masked]
> Cc: [email-masked], [email-masked], [email-masked]
> 
> 
> A new version of I-D, draft-moreira-dlife-00.txt
> has been successfully submitted by Waldir Moreira and posted to the
> IETF repository.
> 
> Filename:	 draft-moreira-dlife
> Revision:	 00
> Title:		 Opportunistic Routing based on Users Daily Life Routine
> Creation date:	 2012-07-07
> WG ID:		 Individual Submission
> Number of pages: 43
> URL:             http://www.ietf.org/internet-drafts/draft-moreira-dlife-00.txt
> Status:          http://datatracker.ietf.org/doc/draft-moreira-dlife
> Htmlized:        http://tools.ietf.org/html/draft-moreira-dlife-00
> 
> 
> Abstract:
>   This document is written in the context of the Delay Tolerant
>   Networking Research Group and will be presented for reviewing by that
>   group. This document defines dLife, an opportunistic routing protocol
>   that takes advantage of time-evolving social structures. dLife
>   belongs to the family of social-aware opportunistic routing protocols
>   for intermittently connected networks. dLife operates based on a
>   representation of the dynamics of social structures as a weighted
>   contact graph, where the weights (i.e., social strengths) express how
>   long a pair of nodes is in contact over different period of times. It
>   considers two complementary utility functions: Time-Evolving Contact
>   Duration (TECD) that captures the evolution of social interaction
>   among pairs of users in the same daily period of time, over
>   consecutive days; and TECD Importance (TECDi) that captures the
>   evolution of user's importance, based on its node degree and the
>   social strength towards its neighbors, in different periods of time.
>   It is intended for use in wireless networks where there is no
>   guarantee that a fully connected path between any source -
>   destination pair exists at any time, a scenario where traditional
>   routing protocols are unable to deliver bundles. Such networks can be
>   sparse mesh, in which case intermittent connectivity is due to lack
>   of physical connections, or dense mesh, in which case intermittent
>   connectivity may be due to high interference or shadowing. In any
>   case, intermittent connectivity can also be due to the availability
>   of devices (e.g., unavailable due to power saving rules). The
>   document presents an architectural overview followed by the protocol
>   specification.
> 
> 
> 
> 
> 
> The IETF Secretariat

-------------------------------------------------------------
Paulo Mendes, Ph.D
Scientific Director for Innovation of the Research Unit in Informatics Systems and Technologies (SITI)
Secretary of the ACM SIGCOMM Chapter - Portugal
University Lusofona, Portugal
[email-masked]
http://siti.ulusofona.pt/~pmendes
Tel.: 217 515 500 Fax: 21 757 7006