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The Spray and Wait routing may achieve low routing and energy efficiency due to the blindness in the spray phase. To address this issue, we propose an opportunistic routing with bounded message copies, called the Energy-aware Spray and Wait (ESW), that utilizes the information about speed and residual energy to allocate the number of copies between the corresponding pair nodes in the spray phase....
Recent work shows that sink mobility along a constrained path can improve the energy efficiency in wireless sensor networks. However, due to the path constraint, a mobile sink with constant speed has limited communication time to collect data from the sensor nodes deployed randomly. This poses significant challenges in simultaneously improving the amount of data collected and prolonging network lifetime...
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