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 20 of 33 for “"radio technology"”.
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Wireless local loop and packet radio technology for developing communities
… system deployment is delayed because adequate radio plans have to be designed, and they are not optimized for Internet and computer communications. Multihop packet radio can offer computer communication in an easily deployable ad-hoc wireless network which does not require frequency p)auuiug. …
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From prop to producer: the appropriation of radio technology in opera during the Weimar Republic.
This thesis explores the appropriation of radio technology in opera composed during the Weimar Republic. It identifies a gap in current research where opera and radio have often been examined separately in the fields of musicology and media history. This research adopts a case study approach and …
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An adaptive threshold energy detection technique with noise variance estimation for cognitive radio sensor networks
… of dynamic spectrum access alongside cognitive radio technology can mitigate the coexistence issues by allowing WSNs to dynamically access new spectrum opportunities. Furthermore, cognitive radio technology addresses some of the inherent constraints of WSNs thus introducing a myriad of benefits. …
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Evaluation of GNU Radio Platform Enhanced for Hardware Accelerated Radio Design
The advent of software radio technology has enabled radio developers to design and implement radios with great ease and flexibility. Software radios are effective in experimentation and development of radio designs. However, they have limitations when it comes to high-speed, high-throughput …
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Improving Ultra-Wideband Localization by Detecting Radio Misclassification
… recent developments in ultra-wideband (UWB) radio technology have enabled precise positioning in places where it was not previously possible by utilizing multipath-resistant wide band pulses.</p> <p>Although ultra-wideband signals are less prone to multipath interference, it is still a …
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An Approach to Using Cognition in Wireless Networks
… been well studied and optimized with traditional radio resource management techniques, but still there is room for improvement. Cognitive radio technology can bring significantcant network improvements by providing awareness to the surrounding radio environment, exploiting previous network …
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Tropicalizing the Portable Radio
… found that fungal growth put its portable radio equipment out of use at an alarmingly fast rate in the tropics. This paper follows radio engineers and biologists as they made sense of “‘tropical deterioration” and devised techniques of “tropicalization” to counteract it. By tracking …
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A day in the life of the RF spectrum
… to modernize this strategy. Given advances in radio technology that can lead to fully cooperative broadcast, relay, and reception designs, we begin by studying the existing radio environment in a qualitative manner. We wish to objectively understand the purpose of a particular transmission, its …
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Algorithms and Architectures for UWB Receiver Design
Impulse-based Ultra Wideband (UWB) radio technology has recently gained significant research attention for various indoor ranging, sensing and communications applications due to the large amount of allocated bandwidth and desirable properties of UWB signals (e.g., improved timing resolution or …
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A Physical Layer Implementation of Reconfigurable Radio
… communications will demand the use of software radio technology as the basic architecture to support multi-standard, multi-mode and future-proof radio designs. Software-defined radios are configurable devices in which the physical layer can be reprogrammed to support various standards. Field …
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Analyzing Bit Error Rate using Universal Software Radio Peripheral (USRP) Software Defined Radio in Indoor and Outdoor Environments
… environments with the help of Software Defined Radio’s (SDR). Software Defined Radio technology provides cost effective approach and flexibility whereas the hardware approach of traditional systems has significant limitations. We used SDR that implements radio functionalities in software. The …
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Design and Implementation of Radio Frequency Power Feeding Networks for Antenna Array Applications: Simulation and Measurements of Multiport, Equal and Unequal, Fixed and Reconfigurable Radio Frequency Power Feeding Networks for Narrow and Ultra-Wideband Applications
… dividers are vital components and widely used in radio technology, such as antenna arrays, power amplifiers, multiplexers and mixers. A good example is the well-known Wilkinson power divider with its distinctive feeding network characteristics. A comprehensive review indicated that limited …
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Making Radios with GReasy: GNU Radio With FPGAs Made Easy
Radio technology is rapidly evolving and as processing capabilities and algorithms become more complex, the need for alternative compilation and user interface abstraction increases. Field Programmable Gate Array (FPGA) technology introduces unique reconfigurable hardware architectures that can aid …
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Radio After Radio: Redefining radio art in the light of new media technology through expanded practice
I have been working in the field of radio art, and through creative practice have been considering how the convergence of new media technologies has redefined radio art, addressing the ways in which this has extended the boundaries of the art form. This practice-based research explores the rich …
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Medium Access Control in Impulse-Based Ultra Wideband Ad Hoc and Sensor Networks
… to both impulse-based ultra wideband (I-UWB) radios and to large ad hoc and sensor networks. I-UWB is an attractive radio technology for large ad hoc and sensor networks due to its robustness to multipath fading effects, sub-centimeter ranging ability, and low-cost, low-power hardware. Current …
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Energy-detection based spectrum sensing for cognitive radio on a real-time SDR platform
… an increase in wireless applications due to the technology boom; consequently raising the level of radio spectrum demand. However, spectrum is a limited resource and cannot be infinitely subdivided to accommodate every application. At the same time, emerging wireless applications require a lot of …
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Power Consumption Optimization: A Cognitive Radio Approach
… significant power reduction through limited radio reconfiguration based on the channel conditions, especially for short range sensor network applications. A cognitive radio (CR) is an intelligent wireless communication system which is able to determine the most favorable operating parameters …
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Design and Implementation of An Emulation Testbed for Optimal Spectrum Sharing in Multi-hop Cognitive Radio Networks
Cognitive Radio (CR) capitalizes advances in signal processing and radio technology and is capable of reconfiguring RF and switching to desired frequency bands. It is a frequency-agile data communication device that is vastly more powerful than existing multi-channel multi-radio (MC-MR) technology. …
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Cross-Layer Optimization and Distributed Algorithm Design for Frequency-Agile Radio Networks
Recent advancements in frequency-agile radio technology and dynamic spectrum access network have created a huge space for improving the utilization efficiency of wireless spectrum. Existing algorithms and protocols, however, have not taken full advantage of the new technologies due to obsolete …
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The interaction between copyright, neighbouring rights and international licensing procedures: The high-wire balancing act of rights management in the digital age - past, present and future of music licensing
… dissertation traces the development process of radio technology from analogue to online streaming services and examines the associated international laws, regulations, and respective licensing practices in order to understand the struggles online music services face when seeking cross-border …
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