Wireless Communications
MoteTrack: a robust, decentralized approach to RF-based location tracking
Personal and Ubiquitous Computing
Radio-Frequency Identification (RFID) applications: A brief introduction
Advanced Engineering Informatics
Life-cycle data management of engineered-to-order components using radio frequency identification
Advanced Engineering Informatics
A proximity-based method for locating RFID tagged objects
Advanced Engineering Informatics
Dynamic mobile RFID-based supply chain control and management system in construction
Advanced Engineering Informatics
A Survey on Wireless Position Estimation
Wireless Personal Communications: An International Journal
A new time-based algorithm for positioning mobile terminals in wireless networks
EURASIP Journal on Advances in Signal Processing
Exploring landmark placement strategies for topology-based localization in wireless sensor networks
EURASIP Journal on Advances in Signal Processing
IEEE Transactions on Signal Processing
Location sensing and privacy in a context-aware computing environment
IEEE Wireless Communications
RSS-Based Location Estimation with Unknown Pathloss Model
IEEE Transactions on Wireless Communications
A measurement-based model for predicting coverage areas of urban microcells
IEEE Journal on Selected Areas in Communications
Advanced Engineering Informatics
Advanced Engineering Informatics
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The concept of using radio frequency identification (RFID) devices to obtain the location information of objects is novel, and it has great potentials for supply chain applications. The capability of RFID localization, reflected by localization accuracy, is a fundamental issue. This paper presents a comprehensive analysis on how the accuracy is affected by multiple factors, which include region geometry, target distribution, ranging-error distribution, and landmark layout. The performance metrics are the expected mean squared error (MSE) and the expected Cramer-Rao lower bound (CRLB) over the entire localization region. The optimal landmark layouts were first obtained for all the combinations of other factors, and then the impact of individual factors on the localization accuracy was analyzed and discussed. By combining the theoretical analysis and Monte Carlo simulation, it was discovered that (1) the optimal landmark layouts follow simple empirical deployment rules; (2) the performance generally improves as the target distribution is more centering in the region; (3) the performance for rectangular geometries decreases as the aspect-ratio increases; (4) a higher landmark number can improve localization accuracy, but the beneficial result becomes negligible if more than 8 landmarks are used. Moreover, it was demonstrated that the results from a preliminary RFID localization experiment are in agreement with the findings from the simulation.