An extensive area implementation of fully observed greenhouses motivates on\nresearch, especially in remote greenhouses. However, implementation of\nwireless sensor networks (WSNs) is still needed for investigation. Cognitive\nradio sensor networks (CRSNs) took advantage of using the cognitive radio\n(CR) concept to which allowed wireless sensor networks to dynamically access\ninto white space channels which is unused channels. In this paper, we adopted\nthe Generalized Implicit-OR as CRSN sensing protocol to reduce the energy\nconsumption and increase the network lifetime in multiple numbers of\ngreenhouses. Our results showed that enhanced energy consumption and improved\nnetwork lifetime compared to ordinary WSN.
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