Some computer science issues in ubiquitous computing
Communications of the ACM - Special issue on computer augmented environments: back to the real world
GPSR: greedy perimeter stateless routing for wireless networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Estimation with Applications to Tracking and Navigation
Estimation with Applications to Tracking and Navigation
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
The Challenges of Mobile Computing
Computer
Distributed optimization in sensor networks
Proceedings of the 3rd international symposium on Information processing in sensor networks
A Theory of Network Localization
IEEE Transactions on Mobile Computing
On the existence of efficient estimators
IEEE Transactions on Signal Processing
Energy-based sensor network source localization via projection onto convex sets
IEEE Transactions on Signal Processing
Optimal sensor placement and motion coordination for target tracking
Automatica (Journal of IFAC)
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In source localization one estimates the location of a source using a variety of relative position information. Such relative position information is often provided by the received signal strength (RSS) which is in turn affected by log normal shadowing. A related issue is to place sensors around a localized source in a manner in which they can optimally monitor it. This paper considers optimal sensor placement in three dimensions so that a source can be monitored optimally from the RSS at various non-coplanar sensors. The mathematical problem becomes one of maximizing the smallest eigenvalue or the determinant of an underlying Fisher Information matrix, or minimizing the trace of the inverse of the FIM, subject to the constraint that no sensor be closer than a specified distance from the source. We show that optimality is achieved if and only if the underlying Fisher Information Matrix is a scaled diagonal, and provide methods for achieving this condition.