Layer Based Fast Data Collection in Battery-Free Wireless Sensor Networks

Battery-free Wireless Sensor Networks (BF-WSNs) is a promising technology of Wireless Sensor Networks (WSNs). Nodes in BF-WSNs are able to harvest ambient energy, so they have eternal life in theory. Although many works in this field study data collection, few works are concerned about latency. Moreover, some of them adopt unrealistic centralized scheduling manner, others are trapped in performance degradation. Thus, in this paper, we propose a distributed minimum latency data collection algorithm for BF-WSNs-Layer Based Fast Data Collection (LBFDC) Algorithm. LBFDC is distributed so it is able to deal with dynamic situations in BF-WSNs. Because it adopts an adaptive routing strategy and allocates more chances to nodes to transmit, the latency of LBFDC is significantly reduced.