Dynamic Switching-Based Data Forwarding for Low-Duty-Cycle Wireless Sensor Networks

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In this paper, the authors introduce the concept of Dynamic Switch-based Forwarding (DSF) that optimizes the expected data delivery ratio, expected communication delay, or expected energy consumption for low-duty-cycle wireless sensor networks under unreliable communication links. DSF is designed for networks with possibly unreliable communication links and predetermined node communication schedules. To their knowledge, these are the most encouraging results to date in this new research direction. In this paper, DSF is evaluated with a theoretical analysis, extensive simulation, and physical testbed consisting of 20 MicaZ motes.