Internet DRAFT - draft-seedorf-icn-disaster
draft-seedorf-icn-disaster
ICNRG J. Seedorf
Internet-Draft NEC
Intended status: Informational M. Arumaithurai
Expires: July 1, 2016 University of Goettingen
A. Tagami
KDDI R&D Labs
K. Ramakrishnan
University of California
N. Blefari Melazzi
University Tor Vergata
December 29, 2015
Using ICN in disaster scenarios
draft-seedorf-icn-disaster-05
Abstract
Information Centric Networking (ICN) is a new paradigm where the
network provides users with named content, instead of communication
channels between hosts. This document outlines some research
directions for Information Centric Networking with respect to
applying ICN approaches for coping with natural or human-generated,
large-scale disasters.
Status of This Memo
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Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the
document authors. All rights reserved.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Disaster Scenarios . . . . . . . . . . . . . . . . . . . . . 3
3. Research Challenges and Benefits of ICN . . . . . . . . . . . 4
3.1. High-Level Research Challenges . . . . . . . . . . . . . 4
3.2. How ICN can be Beneficial . . . . . . . . . . . . . . . . 5
3.3. ICN as Starting Point vs. Existing DTN Solutions . . . . 7
4. Use Cases and Requirements . . . . . . . . . . . . . . . . . 8
5. Solution Design . . . . . . . . . . . . . . . . . . . . . . . 9
6. The GreenICN Project . . . . . . . . . . . . . . . . . . . . 11
7. Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . 12
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.1. Normative References . . . . . . . . . . . . . . . . . . 12
8.2. Informative References . . . . . . . . . . . . . . . . . 12
Appendix A. Acknowledgment . . . . . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 14
1. Introduction
This document summarizes some research challenges for coping with
natural or human-generated, large-scale disasters. In particular,
the document discusses potential directions for applying Information
Centric Networking (ICN) to address these challenges.
There are existing research approaches (for instance, see further the
discussions in the IETF DTN Research Group [dtnrg]) and an IETF
specification [RFC5050] for disruptant tolerant networking, which is
a key necessecity for communicating in the disaster scenarios we are
considering in this document (see further Section 3.1).
'Disconnection tolerance' can thus be achieved with these existing
DTN approaches. However, while these approaches can provide
independence from an existing communication infrastructure (which
indeed may not work anymore after a disaster has happened), ICN
offers as key concepts suitable naming schemes and multicast
communication which together enable many key (publish/subribe-based)
use cases for communication after a disaster (e.g. message
prioritisation, one-to-many delivery of important messages, or group
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communication among rescue teams, see further Section 4). One could
add such features to existing DTN protocols and solutions; however,
in this document we explore the use of ICN as starting point for
building a communication architecture that works well before and
after a disaster. We discuss the relationship between the ICN
approaches (for enabling communication after a disaster) discussed in
this document with existing work from the DTN community in more depth
in Section 3.3.
Section 2 gives some examples of what can be considered a large-scale
disaster and what the effects of such disasters on communication
networks are. Section 3 outlines why ICN can be beneficial in such
scenarios and provides a high-level overview on corresponding
research challenges. Section 4 describes some concrete use cases and
requirements for disaster scenarios. In Section 5, some concrete
ICN-based solutions approaches are outlined. Related research
activities are ongoing in the GreenICN research project; Section 6
provides an overview of this project.
2. Disaster Scenarios
An enormous earthquake hit Northeastern Japan (Tohoku areas) on March
11, 2011, and caused extensive damages including blackouts, fires,
tsunamis and a nuclear crisis. The lack of information and means of
communication caused the isolation of several Japanese cities. This
impacted the safety and well-being of residents, and affected rescue
work, evacuation activities, and the supply chain for food and other
essential items. Even in the Tokyo area that is 300km away from the
Tohoku area, more than 100,000 people became 'returner' refugees, who
could not reach their homes because they had no means of public
transportation (the Japanese government has estimated that more than
6.5 million people would become returner refugees if such a
catastrophic disaster were to hit the Tokyo area).
That earthquake in Japan also showed that the current network is
vulnerable against disasters and that mobile phones have become the
lifelines for communication including safety confirmation. The
aftermath of a disaster puts a high strain on available resources due
to the need for communication by everyone. Authorities such as the
President/Prime-Minister, local authorities, Police, fire brigades,
and rescue and medical personnel would like to inform the citizens of
possible shelters, food, or even of impending danger. Relatives
would like to communicate with each other and be informed about their
wellbeing. Affected citizens would like to make enquiries of food
distribution centres, shelters or report trapped, missing people to
the authorities. Moreover, damage to communication equipment, in
addition to the already existing heavy demand for communication
highlights the issue of fault-tolerance and energy efficiency.
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Additionally, disasters caused by humans such as a terrorist attack
may need to be considered, i.e. disasters that are caused
deliberately and willfully and have the element of human intent. In
such cases, the perpetrators could be actively harming the network by
launching a Denial-of-Service attack or by monitoring the network
passively to obtain information exchanged, even after the main
disaster itself has taken place. Unlike some natural disasters that
are predictable using weather forecasting technologies and have a
slower onset and occur in known geographical regions and seasons,
terrorist attacks may occur suddenly without any advance warning.
Nevertheless, there exist many commonalities between natural and
human-induced disasters, particularly relating to response and
recovery, communication, search and rescue, and coordination of
volunteers.
The timely dissemination of information generated and requested by
all the affected parties during and the immediate aftermath of a
disaster is difficult to provide within the current context of global
information aggregators (such as Google, Yahoo, Bing etc.) that need
to index the vast amounts of specialized information related to the
disaster. Specialized coverage of the situation and timely
dissemination are key to successfully managing disaster situations.
We believe that network infrastructure capability provided by
Information Centric Networks can be suitable, in conjunction with
application and middleware assistance.
3. Research Challenges and Benefits of ICN
3.1. High-Level Research Challenges
Given a disaster scenario as described in Section 2, on a high-level
one can derive the following (incomplete) list of corresponding
technical challenges:
o Enabling usage of functional parts of the infrastructure, even
when these are disconnected from the rest of the network: Assuming
that parts of the network infrastructure (i.e. cables/links,
routers, mobile bases stations, ...) are functional after a
disaster has taken place, it is desirable to be able to continue
using such components for communication as much as possible. This
is challenging when these components are disconnected from the
backhaul, thus forming fragmented networks. This is especially
true for today's mobile networks which are comprised of a
centralised architecture, mandating connectivity to central
entities (which are located in the core of the mobile network) for
communication. But also in fixed networks, access to a name
resolution service is often necessary to access some given
content.
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o Decentralised authentication: In mobile networks, users are
authenticated via central entities. In order to communicate in
fragmented or disconnected parts of a mobile network, the
challenge of decentralising such user authentication arises.
Independently of the network being fixed or mobile, data origin
authentication of content retrieved from the network is
challenging when being 'offline' (e.g. disconnected from servers
of a security infrastructure such as a PKI).
o Delivering/obtaining information and traffic prioritization in
congested networks: Due to broken cables, failed routers, etc., it
is likely that in a disaster scenario the communication network
has much less overall capacity for handling traffic. Thus,
significant congestion can be expected in parts of the
infrastructure. It is therefore a challenge to guarantee message
delivery in such a scenario. This is even more important as in
the case of a disaster aftermath, it may be crucial to deliver
certain information to recipients (e.g. warnings to citizens) with
higher priority than other content.
o Delay/Disruption Tolerant Approach: Fragmented networks makes it
difficult to support end-to-end communication. However,
communication in general and especially during disaster can
tolerate some form of delay. E.g. in order to know if his/her
relatives are safe or a 'SOS' call need not be supported in an
end-to-end manner. It is sufficient to improve communication
resilience in order to deliver such important messages.
o Energy Efficiency: Long-lasting power outages may lead to
batteries of communication devices running out, so designing
energy-efficient solutions is very important in order to maintain
a usable communication infrastructure.
o Contextuality: Like any communication in general, disaster
scenarios are inherently contextual. Aspects of geography, the
people affected, the rescue communities involved, the languages
being used and many other contextual aspects are highly relevant
for an efficient realization of any rescue effort and, with it,
therealization of the required communication.
The list above is most likely incomplete; future revisions of this
document intend to add additional challenges to the list.
3.2. How ICN can be Beneficial
Several aspects of ICN make related approaches attractive candidates
for addressing the challenges described in Section 3.1. Below is an
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(incomplete) list of considerations why ICN approaches can be
beneficial to address these challenges:
o Routing-by-name: ICN protocols natively route by named data
objects and can identify objects by names, effectively moving the
process of name resolution from the application layer to the
network layer. This functionality is very handy in a fragmented
network where reference to location-based, fixed addresses may not
work as a consequence of disruptions. For instance, name
resolution with ICN does not necessarily rely on the reachability
of application-layer servers (e.g. DNS resolvers). In highly
decentralised scenarios (e.g. in infrastructureless, opportunistic
environments) the ICN routing-by-name paradigm effectively may
lead to a 'replication-by-name' approach, where content is
replicated depending on its name.
o Authentication of named data objects: ICN is built around the
concept of named data objects. Several proposals exist for
integrating the concept of 'self-certifying data' into a naming
scheme (see e.g. [RFC6920]). With such approaches, the origin of
data retrieved from the network can be authenticated without
relying on a trusted third party or PKI.
o Content-based access control: ICN can regulate access to data
objects (e.g. only to a specific user or class of users) by means
of content-based security; this functionality could facilitate
trusted communications among peer users in isolated areas of the
network.
o Caching: Caching content along a delivery path is an inherent
concept in ICN. Caching helps in handling huge amounts of
traffic, and can help to avoid congestion in the network (e.g.
congestion in backhaul links can be avoided by delivering content
from caches at access nodes).
o Sessionless: ICN does not require full end-to-end connectivity.
This feature facilitates a seemless aggregation between a normal
network and a fragmented network, which needs DTN-like message
forwarding.
o Potential to run traditional IP-based services (IP-over-ICN):
While ICN and DTN promote the development of novel applications
that fully utilize the new capabiliticbies of the ICN/DTN network,
work in [Trossen2015] has shown that an ICN-enabled network can
transport IP-based services, either directly at IP or even at HTTP
level. With this, IP- and ICN/DTN-based services can coexist,
providing the necessary support of legacy applications to affected
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users, while reaping any benefits from the native support for ICN
in future applications.
o Opportunities for traffic engineering and traffic prioritization:
ICN provides the possibility to perform traffic engineering based
on the name of desired content. This enables priority based
replication depending on the scope of a given message
[Psaras2014]. In addition, as [Trossen2015], among others, have
pointed out, the realization ICN services and particularly of IP-
based services on top of ICN provide further traffic engineering
opportunities. The latter not only relate to the utilization of
cached content, as outlined before, but to the ability to flexbily
adapt to route changes (important in unreliable infrastructure
such as in disaster scenarios), mobility support without anchor
points (again, important when parts of the infrastructure are
likely to fail) and the inherent support for multicast and
multihoming delivery.
The list above is most likely incomplete; future revisions of this
document intend to add more considerations to the list and to argue
in more detail why ICN is suitable for addressing the aforementioned
research challenges.
3.3. ICN as Starting Point vs. Existing DTN Solutions
There has been quite some work in the DTN (Delay Tolerant Networking)
community on disaster communication (for instance, see further the
discussions in the IETF DTN Research Group [dtnrg]). However, most
DTN work lacks important features such as publish/subscribe (pub/sub)
capabilities, caching, multicast delivery, and message prioritisation
based on content types, which are needed in the disaster scenarios we
consider. One could add such features to existing DTN protocols and
solutions, and indeed individual proposals for adding such features
to DTN protocols have been made (e.g. [Greifenberg2008] [Yoneki2007]
propose the use of a pub/sub-based multicast distribution
infrastructure for DTN-based opportunistic networking environments).
However, arguably ICN---having these intrinsic properties (as also
outlined above)---makes a better starting point for building a
communication architecture that works well before and after a
disaster. For a disaster-enhanced ICN system this would imply the
following advantages: a) ICN data mules would have built-in caches
and can thus return content for interests straight on, b) requests do
not necessarily be routed to a source (as with existing DTN
protocols), instead any data mule or end-user can in principle
respond to an interest, c) Built-in multi-cast delivery implies
energy-efficient large-scale spreading of important information which
is crucial in disaster scenarios, and d) pub/sub extension for
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popular ICN implementations exist [COPSS2011] which are very suitable
for efficient group communication in disasters and provide better
reliability, timeliness and scalability as compared to existing pub/
sub approaches in DTN [Greifenberg2008] [Yoneki2007].
Finally, most DTN routing algorithms have been solely designed for
particular DTN scenarios. By extending ICN approaches for DTN-like
scenarios, one ensures that a solution works in regular (i.e. well-
connected) settings just as well (which can be important in reality,
where a routing algorithm should work before and after a disaster).
It is thus reasonable to start with existing ICN approaches and
extend them with the necessary features needed in disaster scenarios.
4. Use Cases and Requirements
This Section describes some use cases for the aforementioned disaster
scenario (as outlined in Section 2) and discusses the corresponding
technical requirements for enabling these use cases.
o Delivering Messages to Relatives/Friends: After a disaster
strikes, citizens want to confirm to each other that they are
safe. For instance, shortly after a large disaster (e.g.,
Earthquake, Tornado), people have moved to different refugee
shelters. The mobile network is not fully recovered and is
fragmented, but some base stations are functional. This use case
imposes the following high-level requirements: a) People must be
able to communicate with others in the same network fragment, b)
people must be able to communicate with others that are located in
different fragmented parts of the overall network. More
concretely, the following requirements are needed to enable the
use case: a) a mechanism for scalable message forwarding scheme
that dynamically adapts to changing conditions in disconnected
networks, b) DTN-like mechanisms for getting information from
disconnected island to another disconnected island, c) data origin
authentication so that users can confirm that the messages they
receive are indeed from their relatives or friends, and d) the
support for contextual caching in order to provide the right
information to the right set of affected people in the most
efficient manner.
o Spreading Crucial Information to Citizens: State authorities want
to be able to convey important information (e.g. warnings, or
information on where to go or how to behave) to citizens. These
kinds of information shall reach as many citizens as possible.
i.e. Crucial content from legal authorities shall potentially
reach all users in time. The technical requirements that can be
derived from this use case are: a) Data origin authentication,
such that citizens can confrim the authenticity of messages sent
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by authorities, b) mechanisms that guarantee the timeliness and
loss-free delivery of such information, which may include
techniques for prioritizing certain messages in the network
depending on who sent them, and c) DTN-like mechanisms for getting
information from disconnected island to another disconnected
island.
It can be observed that different key use cases for disaster
scenarios imply overlapping and similar technical requirements for
fulfilling them. As discussed in Section 3.2, ICN approaches are
envisioned to be very suitable for addressing these requirements with
actual technical solutions. In [Robitzsch2015], a more elaborate set
of requirements is provided that addresses, among disaster scenarios,
a communication infrastructure for communities facing several
geographic, economic and political challenges.
5. Solution Design
This Section outlines some ICN-based approaches that aim at
fulfilling the previously mentioned use cases and requirements.
o ICN 'data mules': To facilitate the exchange of messages between
different network fragments, mobile entitites can act as ICN 'data
mules' which are equipped with storage space and move around the
disaster-stricken area gathering information to be disseminated.
As the mules move around, they deliver messages to other
individuals or points of attachment to different fragments of the
network. These 'data mules' could have a pre-determined path (an
ambulance going to and fro from a hospital), a fixed path (drone/
robot assigned specifically to do so) or a completely random path
(doctors moving from one camp to another).
o Priority dependent Name-based replication: By allowing spatial and
temporal scoping of named messages, priority based replication
depending on the scope of a given message is possible. Clearly,
spreading information in disaster cases involves space and time
factors that have to be taken into account as messages spread. A
concrete approach for such scope-based prioritisation of ICN
messages in disasters, called 'NREP', has been proposed
[Psaras2014], where ICN messages have attributes such as user-
defined priority, space, and temporal-validity. These attributes
are then taken into account when prioritizing messages. In
[Psaras2014], evaluations show how this approach can be applied to
the use case 'Delivering Messages to Relatives/Friends' decribed
in Section 4.
o Information Resilience through Decentralised Forwarding: In a
dynamic or disruptive environment, such as the aftermath of a
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disaster, both users and content servers may dynamically join and
leave the network (due to mobility or network fragmentation).
Thus, users might attach to the network and request content when
the network is fragmented and the corresponding content origin is
not reachable. In order to increase information resilience,
content cached both in in-network caches and in end-user devices
should be exploited. A concrete approach for the exploitation of
content cached in user devices is presented in [Sourlas2015]. The
proposal in [Sourlas2015] includes enhancements to the NDN router
design, as well as an alternative Interest forwarding scheme which
enables users to retrieve cached content when the network is
fragmented and the content origin is not reachable. Evaluations
show that this approach is a valid tool for the retrieval of
cached content in disruptive cases and can be applied to tackle
the challenges presented in Section 3.1.
o Energy Efficiency: A large-scale disaster causes a large-scale
blackout and thus a number of base stations (BSs) will be operated
by their batteries. Capacities of such batteries are not large
enough to provide cellular communication for several days after
the disaster. In order to prolong the batteries' life from one
day to several days, different techniques need to be explored:
Priority control, cell-zooming, and collaborative upload. Cell
zooming switches-off some of the BSs because switching-off is the
only way to reduce power consumed at the idle time. In cell
zooming, areas covered by such inactive BSs are covered by the
active BSs. Collaborative communication is complementary to cell
zooming and reduces power proportional to a load of a BS. The
load represents cellular frequency resources. In collaborative
communication, end-devices delegate sending and receiving messages
to and from a base station to a representative end-device of which
radio propagation quality is better. The design of an ICN-based
publish/subscribe protocol that incorporates collaborative upload
is ongoing work. In particular, the integration of collaborative
upload techniques into the COPSS (Content Oriented Publish/
Subscribe System)} framework is envisioned [COPSS2011].
o Data-centric confidentiality and access control: In ICN, the
requested content is not anymore associated to a trusted server or
an endpoint location, but it can be retrieved from any network
cache or a replica server. This call for 'data-centric' security,
where security relies on information exclusively contained in the
message itself, or, if extra information provided by trusted
entities is needed, this should be gathered through offline,
asynchronous, and non interactive communication, rather than from
an explicit online interactive handshake with trusted servers.
The ability to guarantee security without any online entities is
particularly important in disaster scenarios with fragmented
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networks. One concrete cryptographic technique is 'Ciphertext-
Policy Attribute Based Encryption' (CP-ABE), allowing a party to
encrypt a content specifying a policy, which consists in a Boolean
expression over attributes, that must be satisfied by those who
want to decrypt such content. Such encryption schemes tie
confidentiality and access-control to the transferred data, which
can be transmitted also in an unsecured channel, enabling the
source to specify the set of nodes allowed to decrypt.
o Decentralised authentication of messages: Self-certifying names
provide the property that any entity in a distributed system can
verify the binding between a corresponding public key and the
self-certifying name without relying on a trusted third party.
Self-certifying names thus provide a decentralized form of data
origin authentication. However, self-certifying names lack a
binding with a corresponding real-world identity. Given the
decentralised nature of a disaster scenario, a PKI-based approach
for binding self-certifying names with real-world identities is
not feasible. Instead, a Web-of-Trust can be used to provide this
binding. Not only are the cryptograohic signatures used within a
Web-of-Trust independent of any central authority; there are also
technical means for making the inherent trust relationships of a
Web-of-Trust available to network entities in a decentralised,
'offline' fashion, such that information received can be assessed
based on these trust relationships. A concrete scheme for such an
approach has been published in [Seedorf2014], where also concrete
examples for fulfilling the use case 'Delivering Messages to
Relatives/Friends' with this approach are given.
6. The GreenICN Project
This section provides a brief overview of the GreenICN project. You
can find more information at the project web site
http://www.greenicn.org/
The recently formed GreenICN project, funded by the EU and Japan,
aims to accelerate the practical deployment of ICN, addressing how
ICN networks and devices can operate in a highly scalable and energy-
efficient way. The project will exploit the designed infrastructure
to support multiple applications including the following two broad
exemplary scenarios: 1) The aftermath of a disaster, e.g. hurricane,
earthquake, tsunami, or a human-generated network breakdown when
energy and communication resources are at a premium and it is
critical to efficiently distribute disaster notification and critical
rescue information. Key to this is the ability to exploit fragmented
networks with only intermittent connectivity, the potential
exploitation of multiple modalities of communication and use of
query/response and pub/sub approaches; 2) Scalable, efficient pub/sub
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video delivery, a key requirement in both normal and disaster
situations.
GreenICN will expose a functionality-rich API to spur the creation of
new applications and services expected to drive industry and
consumers, with special focus on the EU and Japanese environments,
into ICN adoption. Our team, comprising researchers with diverse
expertise, system and network equipment manufacturers, device
vendors, a startup, and mobile telecommunications operators, is very
well positioned to design, prototype and deploy GreenICN technology,
and validate usability and performance of real-world GreenICN
applications, contributing to create a new, low-energy, Information-
Centric global communications infrastructure. We also plan to make
contributions to standards bodies to further the adoption of ICN
technologies.
7. Conclusion
This document outlines some research directions for Information
Centric Networking (ICN) with respect to applying ICN approaches for
coping with natural or human-generated, large-scale disasters. The
document describes high-level research challenges as well as a
general rationale why ICN approaches could be beneficial to address
these challenges. One main objective of this document is to gather
feedback from the ICN community within the IETF and IRTF regarding
how ICN approaches can be suitable to solve the presented research
challenges. Future revisions of this draft intend to include
additional research challenges and to discuss what implications this
research area has regarding related, future IETF standardisation.
8. References
8.1. Normative References
[RFC5050] Scott, K. and S. Burleigh, "Bundle Protocol
Specification", RFC 5050, DOI 10.17487/RFC5050, November
2007, <http://www.rfc-editor.org/info/rfc5050>.
[RFC6920] Farrell, S., Kutscher, D., Dannewitz, C., Ohlman, B.,
Keranen, A., and P. Hallam-Baker, "Naming Things with
Hashes", RFC 6920, DOI 10.17487/RFC6920, April 2013,
<http://www.rfc-editor.org/info/rfc6920>.
8.2. Informative References
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[COPSS2011]
Chen, J., Arumaithurai, M., Jiao, L., Fu, X., and K.
Ramakrishnan, "COPSS: An Efficient Content Oriented
Publish/Subscribe System", Seventh ACM/IEEE Symposium on
Architectures for Networking and Communications Systems
(ANCS), 2011.
[dtnrg] Fall, K. and J. Ott, "Delay-Tolerant Networking Research
Group - DTNRG", https://irtf.org/dtnrg.
[Greifenberg2008]
Greifenberg, J. and D. Kutscher, "Efficient publish/
subscribe-based multicast for opportunistic networking
with self-organized resource utilization", Advanced
Information Networking and Applications-Workshops, 2008.
[Psaras2014]
Psaras, I., Saino, L., Arumaithurai, M., Ramakrishnan, K.,
and G. Pavlou, "Name-Based Replication Priorities in
Disaster Cases", 2nd Workshop on Name Oriented Mobility
(NOM), 2014.
[Robitzsch2015]
Robitzsch, S., Trossen, D., Theodorou, C., Barker, T., and
A. Sathiaseel, "D2.1: Usage Scenarios and Requirements"",
H2020 project RIFE, public deliverable, 2015.
[Seedorf2014]
Seedorf, J., Kutscher, D., and F. Schneider,
"Decentralised Binding of Self-Certifying Names to Real-
World Identities for Assessment of Third-Party Messages in
Fragmented Mobile Networks", 2nd Workshop on Name
Oriented Mobility (NOM), 2014.
[Sourlas2015]
Sourlas, V., Tassiulas, L., Psaras, I., and G. Pavlou,
"Information Resilience through User-Assisted Caching in
Disruptive Content-Centric Networks", 14th IFIP
NETWORKING, May 2015.
[Trossen2015]
Trossen, D., "IP-over-ICN", To appear in EUCNC 2015.
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[Yoneki2007]
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Appendix A. Acknowledgment
The authors would like to thank Ioannis Psaras for useful comments.
Further, the authors would like to thank Joerg Ott and Dirk Trossen
for valuable comments and input, in particular regarding existing
work form the DTN community which is highly related to the ICN
approaches suggested in this document.
This document has been supported by the GreenICN project (GreenICN:
Architecture and Applications of Green Information Centric Networking
), a research project supported jointly by the European Commission
under its 7th Framework Program (contract no. 608518) and the
National Institute of Information and Communications Technology
(NICT) in Japan (contract no. 167). The views and conclusions
contained herein are those of the authors and should not be
interpreted as necessarily representing the official policies or
endorsements, either expressed or implied, of the GreenICN project,
the European Commission, or NICT.
Authors' Addresses
Jan Seedorf
NEC
Kurfuerstenanlage 36
Heidelberg 69115
Germany
Phone: +49 6221 4342 221
Fax: +49 6221 4342 155
Email: seedorf@neclab.eu
Mayutan Arumaithurai
University of Goettingen
Goldschmidt Str. 7
Goettingen 37077
Germany
Phone: +49 551 39 172046
Fax: +49 551 39 14416
Email: arumaithurai@informatik.uni-goettingen.de
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Internet-Draft ICN disaster December 2015
Atsushi Tagami
KDDI R&D Labs
2-1-15 Ohara
Fujimino, Saitama 356-85025
Japan
Phone: +81 49 278 73651
Fax: +81 49 278 7510
Email: tagami@kddilabs.jp
K. K. Ramakrishnan
University of California
Riverside CA
USA
Email: kkramakrishnan@yahoo.com
Nicola Blefari Melazzi
University Tor Vergata
Via del Politecnico, 1
Roma 00133
Italy
Phone: +39 06 7259 7501
Fax: +39 06 7259 7435
Email: blefari@uniroma2.it
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