Abstract
Wireless nanosensor networks (WNSN) are new type of networks that combing nanotechnology and sensor network. Aiming at the mobility problem and the energy limitation of nanonodes, a mobile WNSN opportunistic routing protocol (MWOR) based on energy harvesting is proposed. In the protocol, a piezoelectric nano energy harvesting system is introduced to break the energy bottleneck. Then the protocol establishes a new routing metric model based on the ETX measure, a node motion vector model is introduced to reflect the mobility of node, and a node survivability model is added to reflect the energy harvesting feature of the nanonodes. Simulation results show that this protocol can realize self-powered nanosensors and perpetual wireless nanosensor networks. And it has advantages in transmission success rate, energy consumption balance and effective throughput, and can be applied to mobile WNSN.
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