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 18 of 18 for “"Communication System Design"”.
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Statistical risk estimation for communication system design
Spacecraft are complex systems that involve many subsystems and multiple relationships among them. The design of a spacecraft is an evolutionary process that starts from requirements and evolves over time. During this process, changes can affect mass and power at component, subsystem, and system …
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Cyclic prefix assisted block transmission for low complexity communication system design
… assisted block transmission for low complexity communication system design. Two important aspects are studied: the CP based low-complexity schemes for channel equalization and channel estimation. Specifically, based on the simple frequency domain equalization, a low complexity joint receiver is …
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A Comprehensive In-Building and Microcellular Wireless Communication System Design Tool
Indoor wireless communication systems are becoming increasingly prevalent in work environments. The need to quickly and efficiently provide in-building and microcellular coverage without sacrificing quality is critical to cellular and emerging personal communication system (PCS) operators. …
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On robust and secure wireless communication system design using software-defined radios
… parts: airborne multi input multi output (MIMO) communications, physical layer authentication, and software radio design for DARPA Spectrum Challenge. A common theme for the three distinct problems is the system perspective that we have adopted throughout this dissertation. Instead of considering …
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Site-specific propagation prediction for wireless in-building personal communication system design
… to predict propagation in buildings for personal communication system (PCS) design. Background on the growth of wireless communications is given, and the importance of accurate propagation models is discussed. The peculiarities of propagation in mobile and portable radio environments, particularly …
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On the optimal location of transmitters for micro-cellular radio communication system design
This research aims at solving an engineering design problem encountered in the field of wireless communication systems using mathematical programming techniques. The problem addressed is an indispensable part of micro-cellular radio system design. It involves an optimal location of radio …
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A survey of generalized least squares estimation and its relation to communication system design
Digitized by Kansas Correctional Industries
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Near-field wireless power transfer and communication system design for corneal intraocular prosthetic device
This thesis reports the design of a novel intraocular projection device for the treatment of intractable corneal opacity, with a design emphasis on the simultaneous wireless power and data transfer system. Electronic ocular prosthetics (EOP) or artificial eyes are devices designed to deliver …
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Mobile multimedia service provisioning with collective terminals in broadband satellite networks. An approach for systematic satellite communication system design for service provisioning to collective mobile terminals including: mobile satellite channel modelling, antenna pointing, hierarchical multi-service dimensioning and aeronautical system dimensioning.
This work deals with provisioning of communication services via satellites for collectively mobile user groups in a heterogeneous network with several radio access technologies. The extended use of personalised user equipment beyond the coverage of one single terrestrial network by means of a …
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A comparative analysis of physical-layer rateless coding architectures
… takes into account two aspects of practical communication system design that are abstracted away in many existing works on the subject. In particular, our model assumes that : (1) practical error detection methods are used to determine when to terminate decoding; and (2) performance and …
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An interactive site modeling tool for estimating coverage regions for wireless communication systems in multifloored indoor environments
For indoor wireless communication systems, RF transceivers need to be placed strategically to achieve optimum communication coverage at the lowest cost. Unfortunately, the coverage region for a transceiver depends heavily on the type of building and on the placement of walls within the building. …
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Polarization Reconfigurable Non-Orthogonal Multiple Access (PR-NOMA) for Next Generation Communication Systems
… multiple access (NOMA) method for wireless communication systems has seen ever-increasing implementations for the existing wireless communication system design due to its superiority when compared to its counterpart, the traditional orthogonal multiple access (OMA). However, a novel scheme …
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An Antenna Specific Site Modeling Tool for Interactive Computation of Coverage Regions for Indoor Wireless Communication
A goal of indoor wireless communication is to strategically place RF base stations to obtain optimum signal coverage at the lowest cost and power. Traditionally, transceiver locations have been selected by human experts who rely on experience and heuristics to obtain a near-optimum placement. …
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Vision-Enhanced Communications: On the Benefits of NLOS/LOS Knowledge in Wireless Systems
… information into existing physical layer communication system design. Many properties of the wireless channel, especially for mobile applications, are highly dynamic and easily observable using non-radio frequency (RF) sensors or RF sensors operating out-of-band (OOB) which we refer to as …
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Characterization of redundant UHF communication systems for CubeSats
… radios, and two fully capable radios. MiRaTA's communication architecture is a high speed primary radio and a low speed backup radio. This configuration was chosen to balance between capability and size, mass and power requirements. We present the process of redesigning the communication from …
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Configurable Architecture for System-Level Prototyping of High-Speed Embedded Wireless Communication Systems
… is a growing need to develop high-performance communication systems that can satisfy high-end data processing requirements inherent in these technologies. The speed and complexity of these systems necessitates designers to break away from traditional architectures and design methodologies. A …
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Enabling Cognitive Radios through Radio Environment Maps
… or convergence of different wireless communication networks. Cognitive radios are goal-oriented, autonomously learn from experience and adapt to changing operating conditions. Cognitive radios have the potential to drive the next generation of radio devices and wireless communication …
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The System Design of a Global Communications System for Military and Commercial use Utilizing High Altitude Unmanned Aerial Vehicles (UAVs) and Terrestrial Local Multipoint Distribution Service (LMDS) Sites
This thesis proposes the design of the UAV-LMDS communication system for military and commercial use. The UAV-LMDS system is a digital, wireless communication system that provides service using unmanned aerial vehicles (UAVs) flying at 60,000 ft. acting as communication hubs. This thesis provides …