Sökning: "Computing and Communications industry"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Computing and Communications industry.

1. 1. The Dynamics of Firm and Industry Growth : The Swedish Computing and Communications Industry

   Författare :Dan Johansson; KTH; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; The experimentally organised economy; Competence blocs; Industrial Dynamics; Industrial Transformation; Firm age; Small-firm growth; Turnover of firms; Computing and Communications industry; IT industry; Institutions;

   Sammanfattning : The growth of the Swedish Computing and Communicationsindustry is studied in this thesis. Growth is seen as a dynamicprocess moved by the entry, expansion, contraction and exit offirms.The analysis is founded on the theory of the ExperimentallyOrganised Economy, which views the economy as an experimentalprocess. LÄS MER

3. 2. Quality of Experience on Smartphones : Network, Application, and Energy Perspectives

   Författare :Selim Ickin; Blekinge Tekniska Högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; QoE; QoS; Energy; Mobile computing;

   Sammanfattning : Smartphones have become crucial enablers for users to exploit online services such as learning, leisure, communicating, and socializing. The user-perceived quality of applications and services is an important factor to consider, in order to achieve lean resource management, to prevent user churn and revenue depletion of service or network providers. LÄS MER

4. 3. Signaling for Optical Intensity Channels

   Författare :Johnny Karout; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lattice codes; mutual information; intensity modulation; noncoherent communications; Direct detection; sphere packing.; infrared communications; free-space optical communications; fiber-optical communications;

   Sammanfattning : With the growing popularity of social media services, e-commerce, and many other internet-based services, we are witnessing a rapid growth in the deployment of data centers and cloud computing platforms. As a result, the telecommunications industry has to continue providing additional network capacity to meet the increasing demand for bandwidth. LÄS MER

5. 4. Short-range Optical Communications using 4-PAM

   Författare :Tamas Lengyel; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Data communication; vertical cavity surface emitting lasers; 4-PAM; IM DD; NRZ OOK; optical interconnects; short-range fiber optic links; multimode fiber; inter-symbol interference; intensity modulation;

   Sammanfattning : As the demand for ever higher throughput short-range optical links is growing, research and industry has shown increased interest in multilevel modulation formats, such as the four leveled pulse amplitude modulation, referred to as 4-PAM. As on-off keying persists to be the choice for low latency applications, such as high performance computing, datacenter operators see 4-PAM as the next format to succeed current OOK-based optical interconnects. LÄS MER

7. 5. Wireline Communications in a Wireless World

   Författare :Yezi Huang; Bredbandskommunikation; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The whole society is digitalizing, filled with streaming services, cloud computing and an ambition of ubiquitous connectivity. To address the data demand, ultra-fast broadband, at the speeds of 1Gbps and more, is developed and deployed. Optical fibers have been long viewed as a future-proof carrier for the ultra-fast broadband. LÄS MER