Sökning: "channel representation"

Visar resultat 1 - 5 av 53 avhandlingar innehållade orden channel representation.

1. 1. Political Representation in the European Union : A Multi-Channel Approach

   Författare :Moa Mårtensson; Christer Karlsson; Sverker Gustavsson; Torsten Svensson; Hans Agné; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; political representation; EU; multi-channel approach; European Parliament; Council of Ministers; interest representation; linkage; Services Directive; social-network analysis; coordination; Statskunskap; Political Science;

   Sammanfattning : The European Union (EU) is the most far-reaching attempt yet undertaken to institutionalize democratic policy-making beyond the nation-state. To what extent, and in what ways, do various channels of representation contribute towards the realization of this aim? This dissertation takes stock of current research on the EU’s system of representation, and seeks to expand its agenda so that this central question can be properly addressed. LÄS MER

3. 2. Channel Estimation and Prediction for MIMO OFDM Systems : Key Design and Performance Aspects of Kalman-based Algorithms

   Författare :Daniel Aronsson; Mikael Sternad; Ove Edfors; Uppsala universitet; []
   Nyckelord :channel estimation; channel prediction; OFDM; Kalman filtering; Electrical Engineering with specialization in Signal Processing; Elektroteknik med inriktning mot signalbehandling;

   Sammanfattning : Wireless broadband systems based on Orthogonal Frequency Division Multiplexing (OFDM) are being introduced to meet demands for high data transfer rates. In multiple users systems, the available bandwidth has to be shared efficiently by several users. The radio channel quality will fluctuate, or fade, as users move. LÄS MER

4. 3. Constellation Design under Channel Uncertainty

   Författare :Jochen Giese; Mikael Skoglund; Bertrand Hochwald; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Constellation design; diversity; fading channels; frequency-selective channels; joint channel estimation and data detection; multiple antennas; partial channel state information; wireless communication; Telecommunication; Telekommunikation;

   Sammanfattning : The topic of this thesis is signaling design for data transmission through wireless channels between a transmitter and a receiver that can both be equipped with one or more antennas. In particular, the focus is on channels where the propagation coefficients between each transmitter--receiver antenna pair are only partially known or completetly unknown to the receiver and unknown to the transmitter. LÄS MER

5. 4. Making sense of Baltic democracy : public support and political representation in nationalising states

   Författare :Kjetil Duvold; Sten Berglund; Lars Johannsen; Paul G. Lewis; Örebro universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; democracy; democratisation; consolidation; support for democracy; political culture; political representation; party systems; social cleavages; political community; nation-building; ethnic minorities; post-communism; Baltic countries; Estonia; Latvia; Lithuania; Central and Eastern Europe; the European Union; Political science; Statsvetenskap; Political Science; Statskunskap;

   Sammanfattning : A chief topic of this book is the advance of democracy in Estonia, Latvia and Lithuania. The three countries belong to the most ‘successful’ cases of transition from communist rule to democracy, demonstrated by the fact that they joined the European Union in 2004. LÄS MER

7. 5. Language Based Covert Channel Avoidance

   Författare :Daniel Hedin; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Common protection mechanisms fail to provide end-to-end security; programs with legitimate access to secret information are not prevented from leaking this to the world by accident or malice. Protecting the access to information is not enough to solve this problem. We have to ensure that the program uses the information in a secure way. LÄS MER