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Visar resultat 1 - 5 av 279 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Data Transmission in the Presence of Limited Channel State Information Feedback

   Författare :Behrooz Makki; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Channel state information; Outage probability; Long-term throughput; Continuous communication; Feedback compression; Hybrid automatic repeat request HARQ ; Green communication; Bursty communication; Adaptive power allocation; CSI quantization; Block-fading channels; Correlated fading channels;

   Sammanfattning : .... LÄS MER

3. 2. Steering control for haptic feedback and active safety functions

   Författare :Tushar Chugh; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; position control; coupled stability; passivity; steering system; uncoupled stability; transparency; active safety; haptic feedback; torque control; state estimation;

   Sammanfattning : Steering feedback is an important element that defines driver–vehicle interaction. It strongly affects driving performance and is primarily dependent on the steering actuator's control strategy. LÄS MER

4. 3. Welfare state attitudes in context : local contexts and attitude formation in Sweden

   Författare :Ingemar Johansson Sevä; Stefan Svallfors; Jonas Edlund; Joakim Palme; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Welfare state; attitudes; local context; municipalities; multilevel analysis; Sweden; Sociology; Sociologi; sociologi; Sociology;

   Sammanfattning : Welfare state attitudes are often studied from the perspective of the individual's characteristics and/or national or regime-type contexts. This thesis instead seeks explanations for individuals' varying attitudes towards the welfare state at the level of local contexts (municipalities). LÄS MER

5. 4. Voices from the welfare state. Dissatisfaction and political action in Sweden

   Författare :Maria Solevid; Göteborgs universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; political action; dissatisfaction; welfare state; policy feedback; institutions; empowerment; political participation; Sweden;

   Sammanfattning : The aim of this study is to investigate the relationship between citizens’ dissatisfaction with the welfare state and political action on welfare state issues, and to what extent institutional arrangements affects this relationship. The point of departure for this study is the policy feedback perspective, which acknowledges that the design of institutions shape and constrain citizens’ political preferences and behaviors. LÄS MER

7. 5. Limited Feedback Information in Wireless Communications : Transmission Schemes and Performance Bounds

   Författare :Thanh Tùng Kim; Mikael Skoglund; Hesham El Gamal; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Diversity-multiplexing tradeoff; Large deviation analysis; Limited feedback; MIMO channels; Relay channels; Telecommunication; Telekommunikation;

   Sammanfattning : This thesis studies some fundamental aspects of wireless systems with partial channel state information at the transmitter (CSIT), with a special emphasis on the high signal-to-noise ratio (SNR) regime. The first contribution is a study on multi-layer variable-rate communication systems with quantized feedback, where the expected rate is chosen as the performance measure. LÄS MER