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 16 of 16 for “"radio transceiver"”.
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2GHz W-CDMA Radio Transceiver
A radio transceiver has been designed and built for a W-CDMA experimental system operating at 2GHz. The radio is an RF front-end for mobile terminals. The radio provides the functions of modulation and demodulation to enable transmitting and receiving digital information through the air link. The …
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Ultra-low power radio transceiver for wireless sensor networks
… the design and implementation of ultra-low power radio transceivers at microwave frequencies, which are applicable to wireless sensor network (WSN) and, in particular, to the requirement of the Speckled Computing Consortium (or SpeckNet). This was achieved through quasi-MMIC prototypes and …
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Energy efficient ultra-wideband radio transceiver architectures and receiver circuits
Energy efficient short-range radios have become an active research area with proliferation of portable electronics. A critical specification for radio efficiency is energy/bit. The FCC has allocated the 3.1-10.6 GHz band for radios using ultra-wideband (UWB) signals. In this research, I exploit UWB …
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Rf Low Pass Filter Design And Fabrication Using Integrated Passive Device Technology
… high performance harmonic filters can be used in radio transceiver front-end modules. The realized harmonic filters have insertion loss less than 0.6 dB and harmonic rejections greater than 25 dB with a compact die size of 0.8 mm2.
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Transceiver Design for Ultra-Wideband Communications
… thesis is specifically focused on a software radio transceiver design for impulse-based UWB with the ability to transmit a raw data rate of 100 Mbps yet encompasses the adaptability of a reconfigurable digital receiver. A 500 ps wide Gaussian pulse is generated at the transmitter utilizing the …
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Implementation of Wideband Multicarrier and Embedded GSM
… to evolve very rapidly. The software-defined radio (SDR) base station is one technology that is driving rapid change in cellular infrastructure. While commercial vendors have now embraced SDR, there is another movement that has recently gained prominence. That movement is the convergence of …
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A Software Defined Ultra Wideband Transceiver Testbed for Communications, Ranging, or Imaging
… the development of a general purpose software radio transceiver testbed for UWB signals. The testbed is an enabling technology that provides a development platform for investigating ultra wideband communication algorithms (e.g., acquisition, synchronization, modulation, multiple access), …
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Resource management of cognitive radio networks with optimization methods.
The deployment of cognitive radio networks provides a promising future for wireless communications with higher spectrum efficiency. A cognitive radio transceiver senses its environment and dynamically adapts its transmission methods and the channel usage so that the induced interference to the …
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Design and Prototyoing of a Wireless Data Transceiver in the 900MHz ISM Band
… interest. Also, limitations imposed by current radio transceiver technology tend to limit WDL design. The existing sponsor's wired system operates at a 9600 Baud, and presented the opposite problem: the data rate was too low for the RF Microdevices RF2905 used for the POCP. This challenge …
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Design of Miniature Low-Cost Antennas for Compact Low-Data-Rate IoT Terminals
… Generally, an IoT node integrates an antenna, a radio transceiver, sensors/actuators, and an energy source. Among these components, the antenna remains a major obstacle in developing compact solutions, as its miniaturization significantly degrades its radiation efficiency and bandwidth. Since …
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Design of a wireless platform for wearable and home automation applications
… transmitted to a remote computer by means of a radio transceiver. Besides measuring strain integrated levels the telemetry units can also measure acceleration in 3 axes. Wireless battery charging is another feature that was included in our design which is a key feature for surgically implanted …
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Generalized discrete Fourier transform with non-linear phase : theory and design
… dominates the power (battery) efficiency of the radio transceiver. Among the PAPR reduction methods proposed in the literature, Selected Mapping (SLM) method has been successfully used in OFDM communications. In this thesis, an SLM method employing GDFT with closed form phase functions rather …
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FRIEND: A Cyber-Physical System for Traffic Flow Related Information Aggregation and Dissemination
… GPS device (for time synchronization), an active Radio Frequency Identification (RFID) tag for communication with passing cars, a radio transceiver for RSU to RSU communication and a laptop-class computing device. The physical components of FRIEND collect traffic flow-related data from passing …
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Autonomous energy efficient protocols and strategies for wireless sensor networks
… each node in a WSN is typically equipped with a radio transceiver or other wireless communications device, a small micro controller, and an energy source, usually a battery. The size constraints on sensor nodes result in corresponding constraints on resources such as energy, memory, computational …
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Physical Layer Design for a Spread Spectrum Wireless LAN
… for a direct sequence spread spectrum ISM band radio LAN system. This radio system employs spread spectrum communication technology and a differential binary phase shift keying/quadrature phase shift keying (BPSK/QPSK) non-coherent receiver to overcome the adverse indoor wireless environment. …
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ISM S-band CubeSat Radio Designed for the PolySat System Board
… than currently provided by the PolySat UHF radio. This thesis leverages the proliferation of consumer wireless monolithic transceivers to develop a 250kbps to 2000kbps, 2W CubeSat radio operating within the 2.45GHz Industrial, Scientific, and Medical (ISM) radio band.</p> <p>Estimating a …