Thesis
System-level analysis and design for reliability and security in wireless networks
- Abstract:
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The performance of four wireless network scenarios, focusing on reliable device-to-device (D2D) communications and secure physical layer communications, is analyzed based on stochastic geometry in this thesis. The analyses and methodologies in this thesis constitute a comprehensive framework for system-level analysis and design of reliability and security in future wireless networks.
Since reliability is the cornerstone of security in wireless communications, the first scenario focuses on enhancing the reliability of concurrent D2D transmissions in a Poisson clustered out-band D2D network. Two convex optimization schemes are proposed to maximize the joint coverage probability and minimize the power consumption for reliable concurrent transmissions. Meanwhile, the second scenario focuses on route selection for end-to-end reliability, which is jointly characterized by coverage, delay and trust criteria, in the multi-hop D2D based mission-critical communication systems. The proposed algorithm ensures that the candidate links meet the given requirements of the criteria while selecting the best path based on end-to-end coverage, timeliness or trust probabilities.
Apart from the reliability issues discussed above, wireless communication networks including D2D networks are vulnerable to eavesdropping attacks. Thus, the third scenario moves on to study the meta distribution of the secrecy rate for a legitimate link in the presence of randomly located eavesdroppers (EDs) modeled by a Poisson point process. The meta distribution characterizes the fraction of the realizations of EDs that yield a target secrecy rate. Finally, the fourth scenario studies secure wireless communications in the presence of unmanned aerial vehicle (UAV) jamming and randomly located UAV EDs modeled by a uniform binomial point process. A fitting function on the line-of-sight probability is proposed so that a tractable expression is derived for the secure connection probability (SCP). The trends of the SCP on the transmit signal to jamming power ratio, UAV jammer location and UAV height are analyzed.
Actions
- DOI:
- Type of award:
- DPhil
- Level of award:
- Doctoral
- Awarding institution:
- University of Oxford
- UUID:
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uuid:14c692ea-ebb3-44fc-9f95-fc032ec4814d
- Deposit date:
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2019-08-29
Terms of use
- Copyright holder:
- Tang, J
- Copyright date:
- 2019
- Rights statement:
- In reference to IEEE copyrighted material which is used with permission in this thesis, the IEEE does not endorse any of Oxford University’s products or services. Internal or personal use of this material is permitted. If interested in reprinting/republishing IEEE copyrighted material for advertising or promotional purposes or for creating new collective works for resale or redistribution, please go to http://www.ieee.org/publications_standards/publications/rights/rights_link.html to learn how to obtain a License from RightsLink. If applicable, University Microfilms and/or ProQuest Library, or the Archives of Canada may supply single copies of the dissertation.
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