ICEMAN: A Practical Architecture for Situational Awareness at the Network Edge

Abstract

Abstract. Situational awareness applications used in disaster response and tactical scenarios require efficient communication without support from a fixed infrastructure. As commercial off-the-shelf mobile phones and tablets become cheaper, they are increasingly deployed in volatile ad-hoc environments. Despite wide use, networking in an efficient and distributed way remains as an active research area, and few implementation results on mobile devices exist. In these scenarios, where users both produce and consume sensed content, the network should efficiently match content to user interests without making any fixed infrastructure assumptions. We propose the ICEMAN (Information CEntric Mobile Adhoc Networking) architecture which is designed to support distributed situational awareness applications in tactical scenarios. We describe the motivation, features, and implementation of our architecture and briefly summarize the performance of this novel architecture. and UCSC in the scope of the DARPA Disruption-Tolerant Networking (DTN) Program, which also funded a subsequent collaboration between SRI and PARC Palo Alto Research Center. The underlying idea that delay-/disruption-tolerant and content-based networking should be treated on an equal footing was already advocated by our team, especially J.J. Garcia-Luna-Aceves, at that time, but in our view not satisfactorily realized until now. From a theoretical perspective, we are concerned with an extreme and hence interesting case of a loosely coupled distributed system that requires new decentralized approaches to content-access, dissemination, reliability, and security. Hence, the ENCODERS project also benefits from a good amount of theoretical research that is mostly hidden from the user. In addition to network coding and attribute-based encryption, it implements a version of the partially-ordered knowledge sharing model at the content level that we already used as the basis of our DTN

AirCache: A Crowd-Based Solution for Geoanchored Floating Data

“…A way forward in addressing this issue might be to alternate nodes from active to parked mode and vice versa when certain criteria are met (e.g., the replica level is within the predefined thresholds). (6) bool InsideAnyCluster ← False; (7) foreach in ConnectedComponents do (8) if IsMember(NodeId(Slot), , ReceivedFIs) then (9) ← ∪ NodeId(Slot); (10) InsideAnyCluster ← True; (11) b r e a k ; (12) end (13) end (14) if not InsideAnyCluster then (15) Cluster New; (16) New ← New ∪ NodeId(Slot); (17) ConnectedComponents ← ConnectedComponents ∪ New; (18) end (19) end Algorithm 2: Cluster set computation.…”

“…(3) for ← 1 to Length(LocalFI) do (4) BCHHeard← BasicChannel(LocalFI, ); (5) foreach in receivedFIs do (6) Position ← Shift( , ); 7Ch a n n e l← BasicChannel( , position); (8) Co ll i s i o n← False; (9) Ow n ed← Owner(Channel); (10) if Owned and NotSameId(Channel, Heard) then (11) C o l l i s i o n← True; (12) b r e a k ; (13) end (14) end (15) if Collision then (16) UpdateBoard(Reservationboard, , Free); (17) UpdateFI(LocalFI, , Free); (18) if = Id(Heard) then (19) C o l l i s i o n ( T r u e ) ; (20) EnterContention(); (21) end (22) else (23) if (AdditionalAndExpired(Channel)) then (24) UpdateBoard(board, , Free); (25) else (26) UpdateBoard(board, , Reserved); into account the number of nodes available in that particular cluster; that is, the minimum threshold is computed as the Min(Min thresh , card( )).…”

“…ICEMAN follows in these steps even though it was designed for use in tactical scenarios [16]. It is seen as an evolution of the Haggle architecture with a rich set of capabilities aiming to provide reliable communication in sensitive and disruptive environments.…”

Decentralized Authorization and Privacy-Enhanced Routing for Information-Centric Networks

“…The functionality of the security framework is designed to compose with the other features of the underlying ICN [25,26]. Since content encryption occurs at file granularity, it is transparent to the routing, caching, and network coding components (that operate on data objects corresponding to encrypted files instead of the original ones).…”

Empirical framework for situation awareness measurement techniques in network defense

“…), but in the last few years there have been attempts to transfer this theory to Network Defense (known in this case as CyberSA) [3,12]. Focusing mostly on improving data and attack visualization by using different technologies and interfaces, so the defenders can easily process network data [14,16,17]. This paper focuses on experiments with different SA Measurement techniques in the networking environment [1,2,4,13].…”