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 8 of 8 for “"Frequency Hop"”.
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Adaptive Protocols for Frequency-Hop Packet Radio Networks
… The protocols are designed specifically for frequency-hop (FH) packet radio networks in which some of the radios are subjected to excessive interference. Forwarding protocols are developed that can react to local sources of interference, and improvements in the network performance are made …
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Bluetooth Frequency Hop Selection Kernel Impact on "Inter-Piconet" Interference
… links, also known as piconets, transmit using frequency hopping spread spectrum (FHSS) to send information over the air. As more applications for Bluetooth technology become available, the number of Bluetooth devices will continue to increase. With this increase in use, there will be a decrease …
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Diversity Combining for Frequency-Hop Spread-Spectrum Communications With Partial-Band Interference and Fading (anti-Jam)
… combining techniques that are suggested for frequency-hop (FH) communications with partial-band interference and fading. The analysis covers systems with M -ary orthogonal signaling and noncoherent demodulation. The partial-band interference is modeled as a Gaussian process, although some of …
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Decision-theoretic techniques for the development and use of side information in frequency-hop radio receivers
… is employed to obtain such a method for use in frequency-hop communications with Reed-Solomon coding and errors-and-erasures decoding. One erasure decision rule that is derived minimizes a bound on the probability of not decoding correctly. It makes erasure decisions for a given symbol by …
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The Design, Testing, and Analysis of a Constant Jammer for the Bluetooth Low Energy (BLE) Wireless Communication Protocol
… used to transmit jamming tones in the form of a frequency hop. Limitations of the frequency hop approach necessitated a second modified scheme. In this second scheme a synthesizer and two Software Defined Radios (SDR), connected to a personal computer, continuously generate three individual …
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Efficient forward error correction coding technique for spread spectrum communications
… system, which is based on GPS driven slow frequency hopping access. The main contributions of this thesis are the demonstration of the performance of the coding scheme, which works well in severe fading environments. The coding technique uses simple Reed-Solomon Forward Error Correction …
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Residential Microwave Oven Interference on Bluetooth Data Performance
… measurement concept is developed to take radio frequency measurements. A LabView program enables a spectrum analyzer to download oven spectral data onto a computer via the instrument's serial port. From this data, three-dimensional plots of microwave radiated power levels versus ISM band …