The flat network architecture.

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Intra‐cluster key sharing in hierarchical sensor networks - Ya‐nan - 2013 - IET Wireless Sensor Systems - Wiley Online Library

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An interoperable and flat Industrial Internet of Things architecture for low latency data collection in manufacturing systems - ScienceDirect

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Determination of energy efficient optimal sojourn location of mobile sinks in clustered corona-based wireless sensor networks

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