Search for dissertations about: "relays"
Showing result 1 - 5 of 52 swedish dissertations containing the word relays.
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1. Power Quality Disturbances and Protective Relays
Abstract : This thesis combines knowledge from two areas: power quality and power system protection. Power quality concerns the effect of voltage disturbances on end-user equipment and of current disturbances on network components. Power system protection concerns the detection of faults in the system from measured voltages and currents. READ MORE
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2. Channel Estimation and Self-Interference Suppression for MIMO Relaying Systems
Abstract : Recently, the introduction of relaying nodes in wireless channels has been identified as a promising technique for providing broader coverage, higher transmission rates, and increased reliability. Moreover, when the concept of relaying systems is combined with that of multiple-input multiple-output (MIMO) technology, thesystem performance can be further improved by exploiting the spatial dimension. READ MORE
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3. Optimization of Joint Cell, Channel and Power Allocation in Wireless Communication Networks
Abstract : In this thesis we formulate joint cell, channel and power allocation problems within wireless communication networks. The objectives are to maximize the user with mini- mum data throughput (Shannon capacity) or to maximize the total system throughput, referred to as the max-min and max-sum problem respectively. READ MORE
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4. Electromechanical Interactions in Shuttle Systems and Carbon Nanotube Relays
Abstract : In this thesis we theoretically investigate two kinds of nanoscale systems where there is a strong electromechanical coupling, i.e. an intricate relation between the Coulomb forces that can appear in these systems and the displacements of parts of the systems that they cause. READ MORE
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5. Deployment cost efficiency in broadband delivery with fixed wireless relays
Abstract : Although radio repeaters and wireless routers are commonly used, relaying techniques have received a lot of attention in academic publications the last decade. Most of the techniques proposed in the literature are based on relaying terminals. READ MORE