The added value of Device-to-Device (D2D) communication amounts to an efficient content discovery mechanism that enables users to steer their requests toward the node most likely to satisfy them. In this paper, we address the implementation of content-centric routing in a D2D architecture for Android devices based on WiFi Direct, a protocol recently standardised by the Wi-Fi Alliance. After discussing the creation of multiple D2D groups, we introduce novel paradigms featuring intra-and inter-group bidirectional communication. We then present the primitives involved in content advertising and requesting among members of the multi-group network. Finally, we evaluate the performance of our architecture in a real testbed involving Android devices in different group configurations. We also compare the results against the ones achievable exploiting Bluetooth technologies.

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In our companion WoWMoM 2015 paper [1], we propose a content-centric routing mechanism for Wi-Fi Direct networks. In that paper, we showed how to implement a Wi-Fi Direct multi-group network with unrooted Android devices that supports bidirectional communication between different groups. We devised on it a content-centric application, denoted as Multi-Group Content (MGC), that enables content request and delivery in a distributed and cooperative way. Finally, we demonstrated our application with Android devices to fully validate our approach and assess its performance.Aim of the current demonstration is to allow demo session attendees to experiment MSG and assess its behavior and performance in real time.

In this paper we propose, implement and evaluate a bandwidth aggregation service for residential users that enhances the throughput of their Internet broadband connection through the aggregation of available capacity at neighboring broadband links. Network resources are aggregated by the residential access gateway using the 802.11 radio interface to simultaneously serve home users and to share the broadband connectivity with neighboring access gateways. Differently from previous works, our aggregation scheme is transparent both for local users, who are not required to modify their applications or device drivers, and for neighboring users, who do not experience any meaningful performance degradation. The proposed approach aims at a commercial deployment, leveraging on existing access gateways and ADSL-based access networks.

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