Mobility and service discovery in opportunistic networks

Pitkänen, Mikko; Kärkkäinen, Teemu; Ott, Jörg

doi:10.1109/percomw.2012.6197480

Cited by 17 publications

(8 citation statements)

References 13 publications

(14 reference statements)

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“…The proposed approach motivates further research, for example, on cooperation dynamics when some nodes participate with only subset of available resources [9] or when the nodes can discover only subset of services due to practical limitations in used devices [13].…”

Section: Discussionmentioning

confidence: 99%

Scampi

Pitkänen

Kärkkäinen

Ott

et al. 2012

Proceedings of the First Edition of the MCC Workshop on Mobile Cloud Computing

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Allowing mobile users to find and access resources available in the surrounding environment opportunistically via their smart devices could enable them to create and use a rich set of services. Such services can go well beyond what is possible for a mobile phone acting alone. In essense, access to diverse resources such as raw computational power, social networking relationships, or sensor readings across a set of different devices calls for distributed task execution. In this paper, we discuss the SCAMPI architecture designed to support distributed task execution in opportunistic pervasive networks. The key elements of the architecture include leveraging human social behavior for efficient opportunistic interaction between a variety of sensors, personal communication devices and resources embedded in the local environment. The SCAMPI architecture abstracts resources as service components following a service-oriented model. This enables composing rich applications that utilize a collection of service components available in the environment.

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Section: Discussionmentioning

confidence: 99%

Scampi

Pitkänen

Kärkkäinen

Ott

et al. 2012

Proceedings of the First Edition of the MCC Workshop on Mobile Cloud Computing

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“…Then, the DTN instances rely on the route information from the lower layer to actually discover and identify the respective contact. This can be obtained by service discovery mechanisms as described by various authors (e.g., [13][14][15]). If this information is available, the DTN instances should be able to use it as a base for the utility calculations in the resulting overlay (see Fig.…”

Section: Dtn Utility Scoringmentioning

confidence: 99%

Hybrid scheme to enable DTN routing protocols to efficiently exploit stable MANET contacts

Krug

Aumüller

Seitz

2018

J Wireless Com Network

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Disaster communication is still challenging due to the unpredictable nature and high variance in possible scenarios. Hybrid networking solutions that integrate principles from mobile ad hoc networks (MANETs) and delay tolerant networks (DTN) have been suggested to guarantee a certain robustness for the communication service in case of partial or complete failure of infrastructure. Real-time communication remains however challenging and the goal of any system is to minimize the message delay. One common approach is to provide better connectivity by including additional nodes and exploit the resulting contacts as efficiently as possible. Well-known DTN protocols are however not able to guarantee that, because they are unaware of connections that last for a relatively long time and thus provide stable connectivity. This results from general design assumptions of the DTN protocols and is crucial for the performance of hybrid MANET-DTN solutions. In this paper, we provide a review to this situation and suggest a hybrid solution concept based on layer 3 service discovery and a contact-aware utility scoring mechanism for DTN protocols and implement our concept as an example in one DTN protocol. Using simulations, we are able to show that this combination of mechanisms is able to provide better overall performance in the presence of long-lasting stable contacts.

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“…Public content, e.g., location maps, weather forecasts or news, can then still be retrieved from repositories and caches in an opportunistic way [29] without device discovery.…”

Section: A Privacy Considerationsmentioning

confidence: 99%

Content discovery in wireless information-centric networks

Anastasiades

Sittampalam

Braun

2015

2015 IEEE 40th Conference on Local Computer Networks (LCN)

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Information-centric networking (ICN) enables communication in isolated islands, where fixed infrastructure is not available, but also supports seamless communication if the infrastructure is up and running again. In disaster scenarios, when a fixed infrastructure is broken, content discovery algorithms are required to learn what content is locally available. For example, if preferred content is not available, users may also be satisfied with second best options. In this paper, we describe a new content discovery algorithm and compare it to existing Depth-first and Breadth-first traversal algorithms. Evaluations in mobile scenarios with up to 100 nodes show that it results in better performance, i.e., faster discovery time and smaller traffic overhead, than existing algorithms.

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Mobility and service discovery in opportunistic networks

Cited by 17 publications

References 13 publications

Scampi

Scampi

Hybrid scheme to enable DTN routing protocols to efficiently exploit stable MANET contacts

Content discovery in wireless information-centric networks

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