Dynamic Approaches to In-Network Aggregation

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Dynamic Approaches to In-Network Aggregation

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Collaboration between small-scale wireless devices hinges on their ability to infer properties shared across multiple nearby nodes. Wireless-enabled mobile devices in particular create a highly dynamic environment not conducive to distributed reasoning about such global properties. This paper addresses a specific instance of this problem: distributed aggregation . We present extensions to existing unstructured aggregation protocols that enable estimation of count, sum, and average aggregates in highly dynamic environments. With the modified protocols , devices with only limited connectivity can maintain estimates of the aggregate, despite unexpected peer departures and arrivals. Our analysis of these aggregate maintenance extensions demon- strates their effectiveness in unstructured environments despite high levels of node mobility. I. I NTRODUCTION

Journal: Computing Research Repository - CORR , vol. abs/0810.3, 2008

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- ...Related work is discussed in Section 4, and the paper concludes in section 5. Further discussion and experimental analysis of these protocols may be found in [7]...
Oliver Kennedy, et al. Dynamic Approaches to In-network Aggregation