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We propose a distributed on-demand power-management protocol for collecting data in sensor networks. The protocol aims to reduce power consumption while supporting fluctuating demand in the network and provide local routing information and synchronicity without global control. Energy savings are achieved by powering down nodes during idle times identified(More)
Channel-specific path data for a 44-node 2.4 GHz wireless sensor network deployed in an industrial setting is presented. Each node generates one data packet every 28 seconds with the number of transmissions, received acknowledgements, average RSSI, and other metrics for a path to a single neighbor on a single channel for every 15 minutes of operation.(More)
High end-to-end reliability is a quality demanded by those with critical monitoring and actuation requirements. To date, Wireless Sensor Network (WSN) users have often accepted sub-optimal reliability as being intrinsic to wireless technologies. We describe a centralized monitoring TDMA network with policies chosen to maximize the number of received packets(More)
Networks of hundreds or thousands of sensor nodes equipped with sensing, computing and communication ability are conceivable with recent technological advancement. Methods are presented in this report to recover and visualize data from wireless sensor networks, as well as to estimate node positions. A communication system is assumed wherein information from(More)
Problem setup and other generalities In our models, we consider two popular methods for short and long range peer-to-peer communications: RF and optical media. Only planar networks will be considered, but extending the developed localization techniques to 3D is straightforward. In a network of thousands of nodes, usually densely deployed, it is unlikely(More)
Smart Mesh IP is the latest protocol stack from the Linear Technology's Dust Networks group, who specialize in standards-based intelligent wireless sensor networking solutions. This paper presents a technical overview of this protocol stack, the System-on-Chip built around it, and the "ecosystem" to integrate a low-power mesh network in a larger system and(More)
An evaluation methodology is presented for the performance of reporting node self-selection in wireless sensor networks. Five cost metrics are proposed along with several methods for self-selection that involve little or no collaboration with other nodes. These costs are used to evaluate how efficiently the various algorithms allow for node self-selection(More)