Sökning: "telecommunications services"

Visar resultat 1 - 5 av 136 avhandlingar innehållade orden telecommunications services.

  1. 1. Preferential Coding for Mobile Multimedia Services

    Författare :Muhammad Imran Iqbal; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Different parts of source encoded multimedia streams such as those associated with standard image or video formats possess different levels of importance with respect to their contribution to the quality of the reconstructed image or video. This unequal importance among data within a codestream gives rise to preferential treatment of the more significant parts of the codestream compared to the less important parts. LÄS MER

  3. 2. Coopetition for Mobile Service Provisioning : Is it about infrastructures, services or both?

    Författare :Amirhossein Ghanbari; Jan Markendahl; Anders Henten; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Coopetition; ICT; Wireless; Co-creation; Value; Business; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : As a means of enhancing our everyday lives, ICT industry has caused and experienced significant transformations during past two decades. This transformation relates to technological advances within ICT, and beyond the ICT ecosystem. Wireless ICT is also not an exception in this regard. LÄS MER

  4. 3. Copper Access Networks for Wireline and Wireless Services

    Författare :Eduardo Medeiros; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In the last few years, technologies for broadband delivery over copper have dealt with increased capacity demands by using high frequencies and transmitter coordination, also known as vectoring. At the same time, to provide high capacity mobile broadband, operators have resorted to small cells. LÄS MER

  5. 4. Data-driven Performance Prediction and Resource Allocation for Cloud Services

    Författare :Rerngvit Yanggratoke; Rolf Stadler; Gunnar Karlsson; Filip De Turck; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Cloud services, which provide online entertainment, enterprise resource management, tax filing, etc., are becoming essential for consumers, businesses, and governments. The key functionalities of such services are provided by backend systems in data centers. This thesis focuses on three fundamental problems related to management of backend systems. LÄS MER

  7. 5. Scalable Self-Organizing Server Clusters with Quality of Service Objectives

    Författare :Constantin Adam; Rolf Stadler; Giovanni Pacifici; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telekommunikation; Autonomic computing; self-organization; decentralized control; web services; quality of service; Telekommunikation; Telecommunication; Telekommunikation;

    Sammanfattning : Advanced architectures for cluster-based services that have been recently proposed allow for service differentiation, server overload control and high utilization of resources. These systems, however, rely on centralized functions, which limit their ability to scale and to tolerate faults. LÄS MER