Communication and Localization in UWB Sensor Networks : A Synergetic Approach.

Intro -- 1 Introduction -- 1.1 Motivation -- 1.2 Ultra-Wideband Technology -- 1.3 Contributions -- 2 Low Power, Low Complexity, Low Cost - High Bandwidth? -- 2.1 Non-coherent Ultra-Wideband Systems -- 2.2 Generalized Energy Detection Receiver -- 3 Optimized Data Transmission -- 3.1 Location-aware Adaptation and Precoding -- 3.2 System Model -- 3.3 Signal-to-Interference-and-Noise Ratio -- 3.4 Optimization of Transmitter or Receiver -- 3.4.1 Full channel knowledge -- 3.4.2 Solution to Optimization Problems -- 3.4.3 Statistical channel knowledge -- 3.5 Performance Evaluation -- 3.5.1 Simulation results based on channel model -- 3.5.2 Measured Channels -- 3.6 Implementation Issues and Complexity Analysis -- 3.7 Conclusion -- 4 Multiuser Precoding -- 4.1 Dense Networks: Low data rate despite Gigahertz bandwidth -- 4.2 System Model -- 4.3 Signal-to-Interference-and-Noise Ratio for Multiuser Transmission -- 4.4 Precoding Optimization -- 4.5 Performance Evaluation -- 4.6 Conclusions -- 5 Maximum Likelihood Timing Estimation -- 5.1 Introduction -- 5.1.1 Localization in UWB Sensor Networks -- 5.1.2 Channel Model for Localization based on Time of Arrival -- 5.1.3 Position Estimation -- 5.2 System Model -- 5.3 Conventional Time-of-Arrival Estimators -- 5.4 Problem Statement -- 5.5 Marginal PDF of Energy Detector Output for Normally Distributed Channels -- 5.6 Low-complexity Approximations of PDF -- 5.6.1 Gaussian Approximation -- 5.6.2 Log-Normal Approximation -- 5.7 Performance Results -- 5.8 Summary -- 6 Spectral Timing Estimation -- 6.1 Introduction -- 6.2 System Model -- 6.3 Input Output Relation -- 6.4 Multipath Environment -- 6.4.1 Channel Model -- 6.4.2 Transmit Pulse -- 6.4.3 Estimation Bias and Variance -- 6.5 Performance Results -- 6.6 Summary -- 7 Radar Imaging based Multipath Delay Prediction -- 7.1 Introduction.

7.2 System Setup and Problem Formulation -- 7.3 Scattering Coefficient Map of Environment -- 7.4 Channel Response Prediction -- 7.5 Performance Evaluation of Multipath Prediction -- 7.6 Conclusions -- 8 Measurements and Experimental Results -- 8.1 Introduction -- 8.2 Channel Measurements -- 8.3 High Precision Measurement System -- 8.4 Integrated low-cost/high-speed Measurement System -- 8.5 Office Environment Measurement Campaign -- 8.6 Multipath Delay Prediction -- 8.7 Position Estimation Accuracy -- 8.8 Performance of Location-aware Communication -- 8.9 Summary -- 9 Conclusions and Outlook -- 9.1 Conclusions -- 9.2 Outlook on Future Research.

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Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2024. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.