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This work considers localization of nodes in a sensor network using distance measurements. Recent methods favor projection onto convex sets (POCS), since it overcomes the multimodality problem that plagues least-squares formulations. Previous efforts in this direction require either that the sensor be located in the convex hull of the anchor nodes, or that complicated hyperbolic geometric calculations...
Mobile element has been proposed to assist data collection or data relay in wireless sensor networks, since it is able to either significantly save energy consumption or reach disconnected nodes due to the limited radio range. Trajectory of the mobile elements play an important role in avoiding buffer overflow of sensor nodes. In this paper, we propose optimization problems for mobile elements in...
With the evolution of wireless sensor network, body area sensor networks are expected to realize many realtime monitoring applications. Localization is one of the most important amongst all contexts. In indoor environments signal strength-based localization algorithms usually fail to achieve good accuracy due to deficient antenna coverage and multi- path interference. We propose spatial diversification...
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