Sökning: "Quality of Service parameters"

Visar resultat 16 - 20 av 86 avhandlingar innehållade orden Quality of Service parameters.

1. 16. From Noise to Zapping : Quality of Service Issues Affecting Internet TV Distribution

   Författare :Jens A Andersson; Institutionen för elektro- och informationsteknik; []
   Nyckelord :;

   Sammanfattning : The Internet and the development and deployment of new access networktechnologieshas opened up for new information and communication applications.The mobile or cellular networks have evolved from a facility for voice call totoday's IP only network. LÄS MER

3. 17. Sensitivity of Aeroelastic Properties of an Oscillating LPT Cascade

   Författare :Nenad Glodic; Damian Vogt; Matthew Montgomery; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flutter; aeroelastic response; combined modes; bending-torsion flutter; mode superposition; aerodynamic asymmetries; ROM; probabilistic analysis;

   Sammanfattning : Modern turbomachinery design is characterized by a tendency towards thinner, lighter and highly loaded blades, which in turn gives rise to increased sensitivity to flow induced vibration such as flutter. Flutter is a self-excited and self-sustained instability phenomenon that may lead to structural failure due to High Cycle Fatigue (HCF) or material overload. LÄS MER

4. 18. On Connection Admission Control in Computer Networks

   Författare :Stanislav Belenki; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quality of service; packet-switched networks; the Internet; admission control;

   Sammanfattning : The best-effort nature of the Internet is a result of a relative simplicity of the network. This nature also allows the Internet to achieve high utilization of its resources. However, all these benefits are traded for inability of the Internet to provide a guaranteed or predictive quality of service (QoS). LÄS MER

5. 19. Quality on single-track railway lines with passenger traffic : Anlytical model for evaluation of crossing stations and partial double-tracks

   Författare :Olov Lindfeldt; Bo-Lennart Nelldal; Lars-Göran Mattsson; Nils Olsson; KTH; []
   Nyckelord :Railway operation; Railway capacity; single-track; crossing station; partial double-track; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : Railway transportation is showing a substantial increase. Investments in new infrastructure, new fast and comfortable vehicles, and high frequency of service are important factors behind the increase.Infrastructure configuration and timetable construction play important roles in the competitiveness of railway transportation. LÄS MER

7. 20. Adaptive Concatenated Coding for Wireless Real-Time Communications

   Författare :Elisabeth Uhlemann; Högskolan i Halmstad; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Incremental redundancy hybrid ARQ; Multiple concatenated codes; Iterative decoding; Rate compatible punctured codes; Union bounds; EXIT charts; Convergence analysis; Wireless real-time communication; Quality of service; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : The objective of this thesis is to improve the performance of real-time communication overa wireless channel, by means of specifically tailored channel coding. The deadlinedependent coding (DDC) communication protocol presented here lets the timeliness and thereliability of the delivered information constitute quality of service (QoS) parametersrequested by the application. LÄS MER