Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 115 for “"fundamental limits"”.
-
Fundamental limits of wideband localization
… waveforms, and therefore the SPEB serves as a fundamental limit of localization accuracy.
-
Graceful codes : fundamental limits and constructions
A central question in information theory is to understand when and how data can be reconstructed from noisy observations Error correcting codes are means of adding redundancy to the data to enable better recovery Most commonly, codes are designed to recover data in a regime where the statistics of …
-
The fundamental limits of statistical data privacy
… the data before releasing it. This leads to a fundamental tradeoff between privacy and utility. In this thesis, we take a concrete step towards understanding the fundamental structure of privacy mechanisms that achieve the best privacy-utility tradeoff. This tradeoff is formulated as a …
-
Social computation: Fundamental limits and efficient algorithms
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2018-08-31 without embargo terms
-
Compressive sensor networks : fundamental limits and algorithms
… systems. In particular, we explore the limits of performance of compressive sensor networks in relation to fundamental operations such as quantization and parameter estimation. Since compressed sensing is originally formulated as a real-valued problem, quantization of the measurements is …
-
Matching in networks: fundamental limits and efficient algorithms
… </p><p>The first stream aims at developing the fundamental limits and designing simple and scalable algorithms for learning complex networks. We base our study upon the decision-theoretic framework wherein an unknown structure underlies the network data. We aim to detect and recover this hidden …
-
Fundamental limits of random access in wireless networks
… guarantees. In this thesis, we identify a fundamental limit on the aggressiveness of nodes, beyond which instability is bound to occur in a broad class of networks. We will mainly consider adapting transmission lengths by considering a weight for each node as a function of its queue size. …
-
Detection of sparse mixtures: fundamental limits and algorithms
… more refined look at consistency by studying the fundamental rates at which the error probabilities for the sparse mixture detection problem can be driven to zero with the sample size under mild assumptions on the signal and noise distributions. The fundamental rates of decay of the error …
-
Interference Mitigation for Cellular Networks: Fundamental Limits and Applications
Interference is a key limiting factor in modern communication systems. In a wireless cellular network, the performance of cell-edge users is severely limited by the intercell interference. This thesis studies the use of interference-channel and relay-channel techniques to mitigate intercell …
-
Tunable Impedance Matching Network Fundamental Limits and Pracitical Considerations
… of tunable impedance matching networks. Both the fundamental limitations of ideal networks as well as practical considerations for design and implementation are addressed. Specifically, distributed matching networks with a single tuning element are investigated for use with parallel …
-
Statistical inference in networks: fundamental limits and efficient algorithms
Today witnesses an explosion of data coming from various types of networks such as online social networks and biological networks. The goal of this thesis is to understand when and how we can efficiently extract useful information from such network data. In the first part, we are interested in …
-
Fundamental limits of the switching abruptness of tunneling transistors
The tunneling field-effect transistor (TFET) is one of the most promising candidates for future low-power electronics because of its potential to achieve a subthreshold swing less than the 60 mV/decade thermal limit at room temperature. It can surpass this limit because the turn-on of tunneling …
-
Wideband Low-Profile Antenna Arrays: Fundamental Limits and Practical Implementations
… all antennas, phased arrays are limited by a fundamental compromise between size and performance. Although the theoretical limitations of electrically small antennas have been well known for over 60 years, similarly general limits have not yet been developed for periodic antenna arrays. In the …
-
Fundamental limits and algorithms for sequence reconstruction, alignment, and analysis
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
-
Joint clustering and group synchronization: fundamental limits and efficient algorithms
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms
-
Fundamental limits to local density of states in absorptive system
Fundamental limits to optical responses such as absorption, scattering and local density of states (LDOS) are proposed given intrinsic material losses by Owen, etc. The absorption and scattering limits are validated in Owen's work while the LDOS of common structures fall short of the limits. To …
-
Physical redundancy for defect tolerance : example designs and fundamental limits
… include some small optimal graph structures and fundamental limits on what the optimal design structure can achieve for the cases where a small number of errors are corrected and for where the number of errors to be correctly grows asymptotically.
-
Solid-State Terahertz And Millimeter-Wave Electronics: Reaching The Fundamental Limits
… operating close to and beyond the conventional limits of the devices. These circuit blocks can effectively generate, combine, and process signals from multiple devices to achieve performances orders of magnitude better than the state of the art. The proposed techniques are general and can be …
-
Detection and Decoding: New Learning-Based Algorithms and Their Fundamental Limits
The ever-increasing demand for low-latency, higher reliability, and enhanced coverage in next-generation mobile communications, particularly for applications such as the Internet of Things and autonomous driving, necessitates the development of new algorithms that improve performance or reduce the …
-
Optimal entropy estimation on large alphabet: fundamental limits and fast algorithms
Consider the problem of estimating the Shannon entropy of a distribution over k elements from n independent samples. We obtain the minimax mean- square error within universal multiplicative constant factors if n exceeds a constant factor of k/log(k); otherwise there exists no consistent estimator. …
Page 1 of 6