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 6 of 6 for “"Omnidirectional Antennas"”.
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Utilizing Beamforming Antennas for Wireless Multihop Networks
… have explicitly or implicitly assumed an omnidirectional antenna at the radio layer. With recent progress in signal processing and antenna technologies, smart beamforming antennas have become feasible at cheaper prices, making them an attractive replacement to omnidirectional antennas. …
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Antenna effects on indoor wireless channels and a deterministic wide-band propagation model for in-building personal communication systems
… show that vertically polarized (VP) directional antennas at both the transmitter and the receiver can give better delay spread and path loss results than other antenna combinations. The performance of VP directional antennas are found to be sensitive to the alignment of the antennas, and the …
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On the Capacity Modelling in 3G Mobile Wireless Communications Systems
… increase with the use of directional smart antennas to reduce the interference and therefore gain capacity increase. These are typically complex systems. One type that is simple enough yet beneficial in gaining capacity and coverage improvements in the WCDMA environment is called the …
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The Effects of Atomic Oxygen on Patch Antenna Performance and Lifetime
… how AO erosion affects the performance of patch antennas for CubeSat applications. Patch antennas are small, cheap, low-profile antennas that can be used on CubeSats to communicate with the ground or other satellites. Patch antennas are semi-directional, providing higher gain and higher available …
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Cross-Layer Optimization: System Design and Simulation Methodologies
… MANET wherein the nodes are equipped with smart antennas. Traditional MAC protocols assume the use of omnidirectional antennas. Nodes with directional antennas are capable of transmitting in certain directions only and significantly reduce the chances of collision and increase the effective …
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Design of Miniature Low-Cost Antennas for Compact Low-Data-Rate IoT Terminals
… and energy budgets are more favorable, their antennas are often pushed into the electrically small regime, further complicating impedance matching. The aim of this thesis is to introduce a new design methodology that provides low-cost Electrically Small Antenna (ESA) solutions suitable for …