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 11 of 11 for “"power conservation"”.
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Power conservation and performance analysis of mobile ad hoc wireless networks
… which manifest exhaustible sources of power. Due to the increasing demand for high-speed data services, the limited and high cost of licensed, and the future MANETs are expected to be operating at frequencies greater than 2 GHz and most of the research work in the area has been done in …
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Network lifetime extension, power conservation and interference suppression for next generation mobile wireless networks
… against undesired interference of unknown power, while preserving simple design, with closed-form solution for error probabilities. It is shown that these detectors are linearly optimal, if the interference power is unknown. In the area of network lifetime extension, a new approach to …
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An Automatic, Adaptive, Ad-hoc Algorithm for Power Conservation in Sensor Networks using Switch-off
… and a critical dependence on a finite source of power, the battery. The battery is a bottleneck to the lifetime of the network and careful use of the battery can increase the lifetime by orders of magnitude. The periodic nature of traffic in a sensor network can be leveraged to switch the …
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Unsupervised disaggregation of low frequency power measurements
… about climate change are motivating residential power conservation efforts. We investigate the effectiveness of several unsupervised disaggregation methods on low frequency power measurements collected in real homes. Specifically, we consider variants of the factorial hidden Markov model. Our …
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Software systems for power and energy conservation
… the failure of Dennard scaling has resulted in power becoming a critical factor in all facets of microprocessor design. To counter the Power Wall, techniques such as voltage and frequency scaling, heterogeneous hardware and voltage underscaling coupled with improved application reliability have …
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Propulsion optimization for ABE, an autonomous underwater vehicle (AUV)
… of these vehicles is dependent primarily on the power consumption of the propulsion system, the control system and the sensor packages. A customized propulsion thruster is designed. This includes a specialized propeller tailored to ABE and a matched motor and transmission. A non-linear lumped …
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Efficient orchestration of data centers via comprehensive and application-aware trade-off exploration
… network survivability, bandwidth efficiency, power conservation, and computational contention, we demonstrate that our approach enumerates a wider range of, and potentially better, solutions than current orchestrators, for data centers with hundreds of switches, thousands of servers, and tens …
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A Smart Implementation of Turbo Decoding for Improved Power Efficiency
… through a noisy channel. Turbo codes are a very powerful form of error correction codes that bring the performance of practical coding even closer to Shannon's theoretical specifications. Bit-error-rate (BER) performance and power dissipation are two important measures of performance used to …
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An Evaluation of the Linux Virtual Memory Manager to Determine Suitability for Runtime Variation of Memory
… Some operating scenarios however, such as the power conservation mechanisms and virtual machine monitors, require the ability to vary the physical memory available at runtime, thereby making invalid the assumptions made by these memory managers. In this work we evaluate the suitability of the …
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Decision-Making with Heterogeneous Sensors - A Copula Based Approach
… to the fusion center for bandwidth and power conservation. A detection scheme is proposed for this problem assuming unifom scalar quantizers at each sensor. The designed rule is applicable for both binary and multibit local sensor decisions. An alternative suboptimal but computationally …
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Application of DMAIC to improve energy consumption in a commercial building
Submitted for the fulfilment of the requirement for Master of Engineering in Industrial Engineering, Durban University of Technology, Durban, South Africa, 2021.