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 9 of 9 for “"power adaptation"”.
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Automation of power adaptation for electrosurgery
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01
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An improved code rate search scheme for adaptive multicode CDMA
… system throughput through joint rate and power adaptation with perfect channel information in a multicode CDMA system. By specifying suitable boundary conditions and adaptively searching the optimal rate vectors, the search range can be narrowed down thereby significantly improving search …
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MIMO MC-CDMA Systems over indoor optical wireless communication channels
… This thesis investigates the use of transmit power adaptation in the design of optical wireless spot-diffusing systems to increase the power associated with the main impulse response components, resulting in a compact impulse response and a system that is able to achieve higher data rates. The …
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Effective Resource Allocation for Non-cooperative Spectrum Sharing
… the most effective allocation of the users’ power over the bandwidth. However, prior analysis has focussed on Shannon capacity as the utility function, even though it is known that real signals do not, in general, meet the Gaussian distribution assumptions of that metric. In a non-cooperative …
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Stable and fair congestion control mechanisms for cooperative vehicle safety in vehicular networks
… These mechanisms adapt transmission rate and power, based on network measures such as: Channel Busy Ratio (CBR), packet reception rate and vehicles tracking error. Channel Busy Ratio (CBR) is defined as the ratio of time that the channel is sensed busy during a time slot. We examine two such …
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Wireless Throughput and Energy Efficiency under QoS Constraints
… <p>Following this analysis, energy-efficient power adaptation policies in fading channels are studied when data arrivals are modeled as Markovian processes and statistical QoS constraints are imposed. After formulating energy efficiency (EE) as maximum throughput normalized by the total power …
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Cognitive Radio Systems: Performance Analysis and Optimal Resource Allocation
… <p>In the first part of the thesis, optimal power adaptation schemes that maximize the achievable rates of cognitive users with arbitrary input distributions in underlay cognitive radio systems subject to transmit and interference power constraints are studied. Simpler approximations of …
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Predictive power management for multi-core processors
… to reduce consumption. Specifically, the power and performance demand of computing systems vary widely in time and across workloads. This has led to the design of dynamically adaptive or power managed systems. At runtime, these systems can be reconfigured to provide optimal performance and …
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Characterizing Dynamic Power and Data Rate Policies for WirelessUSB Networks
… mobility depends intrinsically on battery life. Power can be conserved at the Media Access Control (MAC) layer by intelligently adjusting transmission power level and data rate encoding. WirelessUSB is a low-power, low-latency wireless technology developed by Cypress Semiconductor Corporation for …