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For widespread adoption of sensor technology, robustness in the event of abnormal behavior such as a network intrusion, or failures of components or nodes is critical. Current research on robust and resilient sensor networking is focused on specific tasks - secure broadcast, secure aggregation, secure localization or fault-tolerant feature extraction. While these primitives provide useful functionality, what has been lacking is a comprehensive, holistic approach to sensor network robustness across various failure modalities. This paper proposes a self-healing hybrid sensor network architecture called SASHA, that is inspired by and co-opts several mechanisms from the Acquired Natural Immune System to attain its autonomy, robustness, diversity and adaptability to unknown pathogens, and compactness.
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