Sökning: "communications network"

Visar resultat 1 - 5 av 266 avhandlingar innehållade orden communications network.

  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. Kommunikationer, tillgänglighet, omvandling : en studie av samspelet mellan kommunikationsnät och näringsstruktur i Sveriges mellanstora städer 1850-1970

    Författare :Hans Westlund; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; urban history; transport history; infrastructure; structural change; communications network; accessibility; railways; regional development; Kommunikationer; Sverige; ekonomiska förhållanden; historia; 1800-talet; 1900-talet;

    Sammanfattning : This study deals with the relationship between communications networks and economic structure in medium-sized Swedish towns 1850-1970. Medium-sized towns have been defined as those which were ranked 4th-20th in terms of population at two points in time: in the year 1900, when industry had established a foothold and the most important railways had been built, and in the year 1970, at the end of the period studied. LÄS MER

  4. 3. "Framtiden tillhör informatörerna” : samhällsinformationens formering i Sverige 1965–1975

    Författare :Fredrik Norén; Pelle Snickars; Johan Jarlbrink; Marie Cronqvist; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; public information; governmental information; public campaign; Sweden; digital humanities; digital text analysis; 1960s; 1970s; network; PR-history; cultural histories of media; conceptual history; medie- och kommunikationsvetenskap; media and communication studies;

    Sammanfattning : This dissertation is about the formation of governmental information in Sweden during the period 1965 to 1975. During this period information related issues were high up on the political agenda, in Sweden and internationally. LÄS MER

  5. 4. Seamless Communications

    Författare :Lennart Isaksson; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The evolution of today’s wireless technologies and small hand-held devices has enabled the handling of the trade-off between mobility and performance. Things have, however, become more complex. Users demand high performance when using small and resource-efficient devices. LÄS MER

  7. 5. Contagious Communications : The role of emotion in viral marketing

    Författare :Elsie Margaretha Botha; Esmail Salehi-Sangari; Matthew Robson; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Viral marketing; Emotion; eWOM; Social Media; Affect; Industriell ekonomi och organisation; Industrial Engineering and Management;

    Sammanfattning : The “connection generation” craves interaction with and connection to vast social networks through the sharing of information, photos, opinions, entertainment and news. This sharing comes in the form of electronic word-of-mouth or eWOM, and provides marketing and communication managers with an unparalleled opportunity to reach a large number of consumers quickly. LÄS MER