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Exploiting Radio Signal Strength Indicator (RSSI) estimation method to conduct indoor localization in wireless sensor networks offers a new approach to serve object tracking and improve the tracking precision. When the object is closer the line-of-sight link between the transmitter and the receiver, it is more likely to arouse the attenuation or amplification of the RSSI signal. In this paper, the...
Mobile Elements (MEs) are widely employed for data collection in Wireless Sensor Networks (WSNs) to balance the energy consumption and prolong the network lifetime. However, the limited travel speed of the MEs causes a large data collection latency, which in turn degrades the performance of the data collection task and weakens the applicability of the data collection schemes. Considering the deterministic...
In wireless sensor networks, grid-based clustering and routing schemes have attracted considerable attention due to their simplicity and feasibility. In this paper, we adopt a hexagonal tessellation approach and propose a Fast Hexagonal Clustering (FHC) algorithm for efficient data collection. The traffic load is intentionally concentrated at a small portion of Cluster Heads (CHs) and Convergence...
Using mobile elements (MEs) as mechanical carriers to collect data brings many opportunities to wireless sensor networks, such as improving the energy efficiency of sensor nodes and prolonging network lifetime. However, the limited travel speed of MEs leads to a higher data transfer latency, which in turn degrades the performance of the data collection task. The optimal use of the limited mobility...
Mobility-assisted data collection in wireless sensor networks offers us a new approach to reducing and balancing the energy consumption of sensor nodes, however, the resultant data collection latency may be large due to the limited travel speed. Much research effort has been made on reducing the data collection latency with the scenario of a single mobile device. A potential problem with this is its...
This paper introduces a novel concept for automated navigation and control of a mobile platform. It utilizes an ad-hoc mobile wireless sensor network to provide navigational information to the mobile platform embedded control system. The embedded controller is realized with an ARM9 SOC based single board computer, with real time, multi-thread software implementation using a real time Linux operating...
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