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.
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Showing 1 to 10 of 10 for “"Communications Security"”.
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Cryptography and Computer Communications Security. Extending the Human Security Perimeter through a Web of Trust
… applications. The work aims at improving cybersecurity via a joint exploitation of human factors and technology; a human-centred cybersecurity design as opposed to technology-centred. The completed functional scheme is tagged CDRSAS. The literature on secret sharing schemes is reviewed together …
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Perspectives on Cryptography: an Analysis of U.S. Policy Over the Enigmatic Science and Its Impact on National Security
… of the emerging policy over matters of security and public concerns. The era containing the exclusive applications of this science within the government is rapidly diminishing, primarily due to technological innovations. The continuous need for military security is presently complemented …
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Free space optic communication for Navy surface ship platforms
… because of their inherent benefits, which are security and high data rates. In military communications security is the first priority. The small divergence of the laser beam makes FSO systems more secure than the existing radio frequency (RF) based wireless systems, because it is highly …
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Phased array impedance tuning, secure transmission, and nonlinear spatial intermodulation suppression for next-generation radar and communications systems.
Simultaneously transmitting radar and communications signals from the same multi-beam phased array system, using spatial diversity, allows multiple functions to use the same frequency and can alleviate spectral congestion. An issue arises, however in a transmitter array that consists of power …
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Security of information systems : what technical solutions exist and what is needed
… is to review the need for information system security, evaluate the technical solutions commonly used today, make recommendations on where extra research is needed, and to overview the technologies, algorithms, standards, and security policies used in providing computer and communications …
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Preventing encrypted traffic analysis
… these services represent a considerable risk to communications security. Existing mechanisms for preventing traffic analysis focus on re-routing and padding. These prevention techniques have considerable resource and overhead requirements. Furthermore, padding is easily detectable and, in some …
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Enhancing Communications Aware Evasion Attacks on RFML Spectrum Sensing Systems
… in the field of radio frequency (RF) communications. Machine learning techniques such as reinforcement learning and deep neural networks (DNN) can be leveraged to improve upon traditional wireless communications methods so that they no longer require expertly-defined features. …
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Resilient Waveform Design for OFDM-MIMO Communication Systems
This dissertation addresses physical layer security concerns, resiliency of the Orthogonal Frequency Division Multiplexing (OFDM) and the Multiple Input Multiple Output (MIMO) systems; the `de-facto' air-interface of most wireless broadband standards including LTE and WiMAX. The major contributions …
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Effective methods for secure data deliver in IoT
… secure and efficient routing in IoT to reduce security and privacy issues of data delivery in IoT and, as a consequence, improve network performance. We divide the research into three sections, concentrating respectively on the problem of security, reliability, efficiency, and privacy in IoT …