4Sensing -- Decentralized Processing for Participatory Sensing Data

Abstract

Abstract. Participatory Sensing is an emerging application paradigm that leverages the growing ubiquity of sensor-capable smartphones to allow communities to carry out wide-area sensing tasks, as a side-effect of people's everyday lives and movements. This paper proposes a decentralized infrastructure for supporting Participatory Sensing applications. It describes an architecture for modeling, prototyping and developing the distributed processing of participatory sensing data. Our initial evaluation shows that the proposed architecture can efficiently distribute the load among participating nodes.

Scalable Data Processing for Community Sensing Applications

“…In section 4 we detail this application. The domain-specific language for specifying virtual tables and data transformations is detailed elsewhere [9].…”

“…In other systems, computation is performed by a combination of fixed nodes scattered across the Internet (e.g., COSMOS [15], SenseWeb [10], 4Sensing [9]). Some of these solutions address the scalability issue by spreading the load across multiple nodes in a peer-to-peer fashion.…”

“…If the way programmers express computations is mostly inherited from our previous work [9], C4S runs in a completely different computation infrastructure (cluster/cloud vs. peer-to-peer). This leads to differences in the way information is propagated by mobile nodes and processed in the servers.…”

“…One possible approach is to use a decentralized solution composed by nodes scattered across the Internet. For example, in [9], we have proposed such a system, with data processing being performed in a peer-to-peer network with nodes contributed by participants in the system. Such completely decentralized solutions involve a lot of complexity for achieving good performance and fault tolerance.…”