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Susana Perez

The HURRywalla project release is an Android implementation of DTN that includes the HURRy routing protocol and BPQ extension block. It has been developed as an evolution (v4) of the [Bytewalla3 project] for Android phones acting as DTN nodes.

HURRy Routing Protocol
The HURRy (HUman Routines used for Routing) protocol, defines a probabilistic routing approach which infers and benefits from the social behaviour of nodes in disruptive networking environments. HURRy is based on PRoPHET but it incorporates the contact duration to the information retrieved from historical encounters among neighbours. It distinguishes between short and long contacts and introduces a novel and more meaningful rating system to evaluate the quality of each contact in human based deployments.
HURRy has been first validated through simulation using [The One simulator]. It has shown a better performance for deployments where duration of contacts is highly diverse.

BPQ Extension Block
The Bundle Protocol Query extension block provides store-and-forward networking for Delay- and Disruption-Tolerant Networks. The [BPQ Internet draft] defines an extension block (BPQ) for Bundles which allows applications to query the stores of nodes on the path along which a bundle containing a bundle query extension block is routed.

HURRywalla has been implemented as an evolution of Bytewalla3, which is a DTN implementation for Android incorporating PRoPHET. [Tecnalia's ICT/ESI Division] has evolved this work so as to implement the HURRy protocol within the DTN stack. The HURRywalla release also incorporates the Publish/Query paradigm defined by BPQ, which allows dynamic content caching on Android phones.

This work has been conducted by within the European FP7 [SAIL project] (Grant Agreement 257448).

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