Search for dissertations about: "spectrum efficiency"

Showing result 21 - 25 of 214 swedish dissertations containing the words spectrum efficiency.

  2. 21. On the Design of Energy Efficient Wireless Access Networks

    Author : Sibel Tombaz; Jens Zander; Timothy O'Farrell; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy Efficiency; Wireless Access Networks; Backhaul; Network Deployment; Power Consumption Model; Cell DTX; Cost Analysis; Informations- och kommunikationsteknik; Information and Communication Technology;

    Abstract : Wireless access networks today consume 0.5 percent of the global energy. Rapidly growing demand for new services and ubiqutious connectivity, will further increase the energy consumption. READ MORE

  4. 22. Source efficiency and high-energy neutronics in accelerator-driven systems

    Author : Per Seltborg; Waclaw Gudowski; Enrique González-Romero; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Atomic physics; Atomfysik;

    Abstract : Transmutation of plutonium and minor actinides in accelerator-driven systems (ADS) is being envisaged for the purpose of reducing the long-term radiotoxic inventory of spent nuclear reactor fuel. For this reason, the physics of sub-critical systems are being studied in several different experimental programs across the world. READ MORE

  5. 23. Reappraisal of market efficiency tests arising from nonlinear dependence, fractals, and dynamical systems theory

    Author : Gun-Ho Cha; Handelshögskolan i Stockholm; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Abstract : The efficient market hypothesis (EMH) has long been perceived as the cornerstone of modern finance theory. However, the EMH has also recently been dismissed as "the most remarkable error in the history of economic theory" (Wall Street Journal, Oct. 23. 1987). READ MORE

  6. 24. Large-Signal Modeling of Microwave Transistors

    Author : Lars Bengtsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; large-signal; HEMT; non-linear models; de-embedding; high-efficiency; class-E amplifier; LDMOS; HBT; HFET; model parameter extraction; microwave transistors;

    Abstract : The development of computer aided design tools for microwave circuit design has increased the interest for accurate transistor models. The circuit complexity has grown as the CAD tools have been improved and the need to predict how non-linear circuits behave has also been increased. READ MORE

  7. 25. Essays on Investor Behavior and Trading Strategies in International Financial Markets

    Author : Anton Hasselgren; Jarkko Peltomäki; Ai Jun Hou; Charlotte Christiansen; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; foreign exchange; speculators; hedge funds; investor behavior; trading strategies; information; market efficiency; företagsekonomi; Business Administration;

    Abstract : This dissertation contains four articles that in different ways inform on investor behavior in international financial markets, their impact on the underlying market, and the trading strategies that they pursue.Article I studies how hedge funds herd in currency future contracts and how it is affecting the underlying market. READ MORE