Sökning: "telecommunication systems"

Visar resultat 1 - 5 av 170 avhandlingar innehållade orden telecommunication systems.

1. 1. NFV Service Chains at the Speed of the Underlying Commodity Hardware

   Författare :Georgios P. Katsikas; Dejan Kostic; Gerald Q. Maguire Jr.; Rebecca Steinert; Fabian Schneider; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NFV; service chains; synthesis; offloading; tagging; zero inter-core communication; line-rate; 100GbE; NFV; tjänstekedjor; syntetisering; processavlastning; paketmärkning; ingen inter-CPU-kommunikation; länkkapacitet; 100GbE; Computer Science; Datalogi; Informations- och kommunikationsteknik; Information and Communication Technology; Telecommunication; Telekommunikation;

   Sammanfattning : Link speeds in networks will in the near-future reach and exceed 100 Gbps. While available specialized hardware can accommodate these speeds, modern networks have adopted a new networking paradigm, also known as Network Functions Virtualization (NFV), that replaces expensive specialized hardware with open-source software running on commodity hardware. LÄS MER

3. 2. Overload Control and Performance Evaluation of Web Servers

   Författare :Mikael Andersson; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; system; numerisk analys; Datalogi; control; systems; numerical analysis; Computer science; Content Adaptation; Admission Control; Overload Control; Web servers; Performance modeling; kontroll; Technological sciences; Teknik; Systems engineering; computer technology; Data- och systemvetenskap; Telecommunication engineering; Telekommunikationsteknik;

   Sammanfattning : We are increasingly dependent on Internet as a large aspect of our daily life is now handled via online applications. Recent years we have seen several large-scale crises. This has made crisis-related research on Internet applications important. LÄS MER

4. 3. Expressing emotions through vibration for perception and control

   Författare :Shafiq ur Réhman; Li Liu; Xiaoyi Jiang; Umeå universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Multimodal Signal Processing; Mobile Communication; Vibrotactile Rendering; Locally Linear Embedding; Object Detection; Human Facial Expression Analysis; Lip Tracking; Object Tracking; HCI; Expectation-Maximization Algorithm; Lipless Tracking; Image Analysis; Visually Impaired.; Signal processing; Signalbehandling; Image analysis; Bildanalys; Computer science; Datavetenskap; Telecommunication; Telekommunikation; Systems engineering; Systemteknik; datoriserad bildanalys; Computerized Image Analysis; business data processing; administrativ databehandling; Electronics; elektronik; Systems Analysis; systemanalys;

   Sammanfattning : This thesis addresses a challenging problem: “how to let the visually impaired ‘see’ others emotions”. We, human beings, are heavily dependent on facial expressions to express ourselves. A smile shows that the person you are talking to is pleased, amused, relieved etc. LÄS MER

5. 4. Active Resource Management in Middleware and Service-oriented Architectures

   Författare :Niklas Widell; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telekommunikationsteknik; Telecommunication engineering; Intelligent Networks; TINA; web systems; distributed systems; resource allocation; stochastic optimization; simulation models; performance analysis; overload control; load balancing;

   Sammanfattning : In this thesis, we study load balancing and overload control in two distributed architectures: Distributed Object Computing (DOC) systems and Services-oriented Architecture (SOA) systems. While DOC and SOA have differences in terms of implementation, they are similar from a performance viewpoint. LÄS MER

7. 5. Field Programmable Gate Arrays and Reconfigurable Computing in Automatic Control

   Författare :Carl Wilhelmsson; Förbränningsmotorer; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; systems analysis; FPGA; Field Programmable Gate Array; programming; Compendex: Field programmable gate arrays FPGA ; programming environments; computer science; programmable controllers; observers; adaptive control; modelling; closed loop systems; logic CAD; control systems; reconfigurable architectures; field programmable gate arrays; Computer Programming; telecommunication control; Control system applications; Real time control; Computer control systems; Control systems; Engine Control; Heat release analysis; Cylinder pressure; power-train control; Vehicle control; High speed; Rapid Prototyping; Combustion control; Automotive control; Control application; High frequency; Computer control; Feedback Control; Closed loop systems; Control; Reconfigurable computing; Reconfigurable hardware; VLSI; Closed loop control; programmable logic arrays; Automatic Control; System on Chip SoC ;

   Sammanfattning : New combustion engine principles increase the demands on feedback combustion control, at the same time economical considerations currently enforce the usage of low-end control hardware limiting implementation possibilities. Significant development is simultaneously and continuously carried out within the field of Field Programmable Gate Arrays (FPGAs). LÄS MER