Sökning: "Cooperative Communications"

Visar resultat 1 - 5 av 59 avhandlingar innehållade orden Cooperative Communications.

1. 1. Cooperative Communications : Link Reliability and Power Efficiency

   Författare :Tafzeel ur Rehman Ahsin; Ben Slimane; Xavier Lagrange; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cooperative Communications; Link Reliability; Power Efficiency; Energy Efficiency; Network Coding; Cooperative Relaying; SRA - ICT; SRA - Informations- och kommunikationsteknik;

   Sammanfattning : Demand for high data rates is increasing rapidly for the future wireless generations, due to the requirement ofubiquitous coverage for wireless broadband services. More base stations are needed to deliver these services, in order tocope with the increased capacity demand and inherent unreliable nature of wireless medium. LÄS MER

3. 2. Managers' Cooperative Work Practices in Computational Artefacts-Supported Library Systems

   Författare :Niki Chatzipanagiotou; Anita Mirijamdotter; Jaime Campos; Christina Mörtberg; Ulrika Lund Snis; Linnéuniversitetet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Work Practice; Cooperative Work; Cooperative Work Practices; Computational Artefacts; Computer-Supported Cooperative Work; Articulation Work; Awareness; Appropriation; Ethnography; Focused-Ethnography; Fieldwork; Vignettes; Complexity; Managers; Management; Libraries; Academic Library; Academic Library Managers; Informatik; Information Systems;

   Sammanfattning : The dissertation presents understandings of the complex, contextual, cooperative everyday work practices of academic library managers supported by computational artefacts, as well as challenges disrupting their practices and thereby computational artefacts usage. The doctoral research approaches and conceptualises managers’ work as ‘everyday cooperative practice’, in this way adopting the computer-supported cooperative work (CSCW) approach. LÄS MER

4. 3. Future Technology Support of Command and Control : Assessing the impact of assumed future technologies on cooperative command and control

   Författare :Mats Persson; Else Nygren; Tim Grant; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; command; control; cooperative; collaboration; decision-making; effectiveness; human-computer interaction; microworld; network-centric; military; team; beslutsfattande; effektivitet; ledning; mikrovärld; militär; människa-datorinteraktion; nätverkscentrerad; samarbete; team; Datavetenskap med inriktning mot människa-datorinteraktion; Computer Science with specialization in Human-Computer Interaction;

   Sammanfattning : In response to technological advances, especially in the field of information and communication technology (ICT), the so called revolution in military affairs (RMA) and later the concept of network-centric warfare (NCW) emerged as a theory to further utilize technology for military command and control (C2). Advocates of the Swedish ROLF 2010-vision and the concept of NCW have made claims and assumptions that future technology will improve mission effectiveness by, for example, increasing the understanding of a current situation and its development, the speed of command, and providing means to utilize more efficient forms of organizations. LÄS MER

5. 4. Cooperative Automated Driving for Enhanced Safety and Ethical Decision-Making

   Författare :Galina Sidorenko; Alexey Vinel; Johan Thunberg; Jérôme Härri; Högskolan i Halmstad; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cooperative Intelligent Transportation System C-ITS ; cooperative vehicles; Vehicle-to-Vehicle V2V communication; V2X communications; automated driving; platooning; emergency braking; road safety; vehicular safety; ITS-G5; IEEE 802.11p; ethical dilemmas; ethical decision-making; autonomous driving ethics;

   Sammanfattning : Advances in technologies for vehicular communication enable new applications for Cooperative Intelligent Transportation Systems (C-ITS). Communicating vehicles share information and cooperate, which allows for improved safety, fuel economy, and traffic efficiency. LÄS MER

7. 5. Link Reliability in Cooperative Relaying Using Network Coding

   Författare :Tafzeel ur Rehman Ahsin; Slimane Ben Slimane; Ove Edfors; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cooperative Communications; Network Coding; Multiple Access Relay Channel; Telecommunication; Telekommunikation; SRA - ICT; SRA - Informations- och kommunikationsteknik;

   Sammanfattning : Demand for high data rates is increasing rapidly for future wireless systems.This trend is due to the increase in the number of mobile subscribers that need bandwidth hungry multimedia applications anywhere, anytime. Fourth generation cellular systems like IMT-advanced are being developed to meet these requirements. LÄS MER