Sökning: "space-time constraint"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden space-time constraint.

1. 1. Novel Applications of Space-Time Processing for Wireless Systems

   Författare :Tommy Hult; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Space-time processing; Novel applications; Wireless communications;

   Sammanfattning : Space-time processing techniques have emerged as one of the most promising areas of research and development in wireless communications. Space-time processing signifies the signal processing performed on a system consisting of several antenna elements, whose signals are processed adaptively in order to exploit both the spatial (space) and temporal (time) dimensions of the radio channel. LÄS MER

3. 2. Understanding Individuals' Learning and Decision Processes in a Changing Environment by Using Panel Data

   Författare :Nursitihazlin Ahmad Termida; Yusak Susilo; Joel Franklin; Kiron Chatterjee; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Behavioural responses; seasons; panel data; travel diary; activity-travel pattern; theory of planned behaviour; space-time constraint; changing environment; tram; Stockholm; Transportvetenskap; Transport Science;

   Sammanfattning : When a new transport service is introduced, people have to learn and familiarize themselves with the new service before they decide to adopt it. These processes are developed over time, thus produce dynamics in individuals’ behavioural responses towards the service. This affects the demand of the new service, thus affect revenues. LÄS MER

4. 3. Performance Assessment of Cooperative Relay Networks with Advanced Radio Transmission Techniques

   Författare :Hoc Phan; Blekinge Tekniska Högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cooperative communications; cognitive relay networks; multiple-input multiple-output MIMO ; space-time block codes; spatial diversity;

   Sammanfattning : In the past decade, cooperative communications has been emerging as a pertinent technology for the current and upcoming generations of mobile communication infrastructure. The indispensable benefits of this technology have motivated numerous studies from both academia and industry on this area. LÄS MER

5. 4. Studies in field theory : supersymmetry and torsion potentials

   Författare :Johan Grundberg; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This report contains introductions to and summaries of the papers which constitute my thesis. These papers treat four different topics: The first of these is the superspace treatment of the linear multiplet in six space-time dimensions, in particular the solution of the constraint for this multiplet. LÄS MER

7. 5. On the Performance Analysis of Cooperative Communications with Practical Constraints

   Författare :Quang Trung Duong; Blekinge Tekniska Högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : With the rapid development of multimedia services, wireless communication engineers may face a major challenge to meet the demand of higher data-rate communication over error-prone mobile radio channels. As a promising solution, the concept of cooperative communication, where a so-called relay node is formed to assist the direct link, has recently been applied to alleviate the severe pathloss and shadowing effects in wireless systems. LÄS MER