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Adaptive Resource Scheduling for Energy Efficient QRD Processor with DVFS

This paper presents an energy efficient adaptive QR decomposition scheme for Long Term Evolution Advance (LTE-A) downlink system. The proposed scheme provides a performance robustness to fluctuating wireless channels while maintaining lower workload on a reconfigurable hardware. A statistic based algorithm-switching strategy is employed in the scheme to achieve workload reduction and stable comput

Existence of Minimum Upcrossing Controllers

An optimal stochastic control problem that minimizes the probability that a signal upcrosses a level is solved by rewriting it as a one-parametric optimization problem over a set of LQG control problem solutions. Finding the optimal controller can be interpreted as finding an optimal costing transfer function. The existence of the optimal controller is investigated in a constructive way, and it is

Betydelse av nedlagd studietid samt inlärnings- och studiestrategier för nya ingenjörers studieresultat under första terminen

I studien har vi gjort en inventering av inlärnings- och studiestrategifaktorer såsom oro, attityder, koncentration, motivation, studiestöd och tidsplanering bland nybörjarstudenter vid Lunds tekniska högskola (LTH) och studerat hur de förändras under första terminen. Vidare har vi studerat hur självstudietiden påverkar studieresultat och om det finns samband med inlärnings och studiestrategifakto

Small scale experiments and theoretical aspects of flame extinguishment with water mist

The present study focuses on extinction of flames with water mist where surface cooling effects are neglected i.e. water mist as a total flooding system where the direct spray cannot reach and cool all burning items in the protected volume. The study includes a survey of the production and properties of water mist such as different types of nozzles and means to describe droplet size distribution.

Occupants ' responses and use of different type of lighting controls: Design and validation of an instrument for measuring human perception of lighting control devices

This paper is a part of a research project studying human interaction with lighting control devices in public indoor environments. Factors such as the perception of the environment or objects may guide human behavior, therefore the perception of lighting related objects may have an impact on the behavior toward energy saving. This paper reports the development of a questionnaire for measuring huma

A variable-rate Viterbi decoder in 130-nm CMOS: design, measurements, and cost of flexibility

This paper discusses design and measurements of a flexible Viterbi decoder fabricated in 130-nm digital CMOS. Flexibility was incorporated by providing various code rates and modulation schemes to adjust to varying channel conditions. Based on previous trade-off studies, flexible building blocks were carefully designed to cause as little area penalty as possible. The chip runs down to a minimal co