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Instant Wireless Sensor Network (IWSN) is a type of WSN deployed for a class of special applications which have the common requirement on instantly responding for collecting and transmitting sensory data, e.g., volcanic eruption monitoring or nuclear leakage detection. In this paper, having a cluster-based WSN, the authors present a Compensation-based Reliable Data Delivery protocol (CRDD) to collect and transmit sensory data timely, reliably, and energy-efficiently. The CRDD consists of three important parts: reliability calculating mechanism, information classifying mechanism, and intelligent balancing mechanism.
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