Search Results

In dynamic settings, fully distributed gossip-based learning schemes have recently gained interest due to their better scalability, robustness, and enhanced privacy protection compared to server-based architectures. However, existing approaches to ...

Wi-Fi capability has been a standard feature on mobile devices for over a decade. Despite Wi-Fi being practically ubiquitous, its usage has been limited to locations where the user is authorized to use a provided WLAN, e.g. home, office, or "free Wi-Fi" ...

Maritime tasks have been costly and challenging due to the geographical, spatial, and dynamic nature of the area of operations. With the high deployment cost and unreliability of Wireless Sensor Networks (WSN), Autonomous Surface Vehicles (ASV) have been ...

Delay or Disruption Tolerant Networks (DTN) are characterized by long delays and intermittent connectivity, requiring efficient energy consumption for increasing the mobile nodes lifetime. The movements of nodes modify the network topology, changing the ...

Accessing online social networks in situations with intermittent Internet connectivity is a challenge. We have designed a context-aware mobile system to enable efficient offline access to online social media by prefetching, caching and disseminating ...

Nowadays, various static wireless sensor networks (WSN) are deployed in the environment for many purposes: traffic control, pollution monitoring, and so on. The willingness to open these legacy WSNs to the users is emerging, by integrating them to the ...

Many of today's popular online social networks are disconnected from their users' immediate social and physical context, which makes them poorly suited for supporting transient, on-purpose social communities of co-located users. We introduce the idea of ...

Many of the existing opportunistic networking systems have been designed assuming a small number links per node and have trouble scaling to large numbers of potential concurrent communication partners. In the real world we often find wireless local area ...

The C3PO project promotes the development of a new kind of spontaneous and ephemeral social networks dedicated to cultural, festive or sports events. They rely on opportunistic communication networks formed dynamically by mobile devices carried by event ...

Opportunistic networks are partially connected wireless ad hoc networks, in which pairwise unpredicted transient contacts between mobile devices are the only opportunities for these devices to exchange information or services. Ensuring the coordination ...

This paper examines shared content editing in opportunistic networks. Instead of immutable messages, such as photos or music files that are often assumed in opportunistic network applications, we focus on mutable content, such as wiki-pages, that can be ...

Mobile opportunistic networking utilizes device-to-device communication to provide messaging and content sharing mechanisms between mobile users without the need for supporting infrastructure networks. However, enabling opportunistic networking in ...

The ever increasing number of mobile devices in Smart Cities and their heavy use, not only for personal communication but also as a distributed network of sensors, generate a data deluge that stresses the traditional wireless communication ...

We present Select&Spray, a novel publish/subscribe communication architecture that extends end mobile user reachability in order to minimize their experienced disconnection times from core infrastructure. Within our architecture, we propose a Select&...

Multi-hop Cellular Networks can help address the increasing data demand and expected capacity constraints of cellular systems through the integration of cellular and relaying technologies. Multi-hop Cellular Networks using Mobile Relays (MCN-MR) are ...

Opportunistic networking requires timely discovery of locally available peers with an incentive to communicate, i.e. that share an interest in an application or content. To overcome the absence of mobile OS support for incorporation of interests in peer ...

Opportunistic networks are systems with highly distributed operation, relying on the altruistic cooperation of heterogeneous, and not always software- and hardware-compatible user nodes. Moreover, the absence of central control makes them vulnerable to ...

In particular types of Delay-Tolerant Networks (DTN) such as Opportunistic Mobile Networks, node connectivity is transient, and connections are sparse and small in length. For this reason, traditional routing mechanisms are no longer suitable. Routing ...

In particular types of Delay-Tolerant Networks (DTN) such as Opportunistic Mobile Networks, node connectivity is transient. For this reason, traditional routing mechanisms are no longer suitable. New approaches use social relations between mobile users ...

In this paper we demonstrate an application platform architecture and implementation that allows developers to easily target opportunistic networks. The platform includes an opportunistic router, HTML5 application development framework, and an ...