Search for dissertations about: "spectrum sharing"

Showing result 6 - 10 of 48 swedish dissertations containing the words spectrum sharing.

  2. 6. Understanding information sharing in supply chains - Identifying contingency factors that impact benefits of information sharing

    Author : Joakim Kembro; Teknisk logistik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Logistics; Supply chain; Supply chain management; Information sharing; Information flow; Demand data; Contingency theory; Contextual factor;

    Abstract : To increase our understanding of information sharing in supply chains the purposeof this licentiate was threefold: to review and analyze existing academic literature to describe and structure the research field; to empirically explore information sharing in a supply chain representing more than three tiers; and to explore contingency factors through literature reviews and empirical data collection. Thereby this licentiate thesis addresses several gaps identified in academic literature. READ MORE

  4. 7. Spectrum Sensing for Dynamic Spectrum Access in Cognitive Radio

    Author : Inna Valieva; Dag Stranneby; Mälardalens universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Abstract. The number of mobile devices is constantly growing, and the exclusivestatic spectrum allocation approach is leading to the spectrum scarcity problem whensome of the licensed bands are heavily occupied and others are nearly unused.Spectrum sharing and opportunistic spectrum access allow achieving more efficientspectrum utilization. READ MORE

  5. 8. Radio Spectrum Management in the European Union

    Author : Maria Massaro; Chalmers tekniska högskola; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; EU integration; radio spectrum management.; international relations; European Union; business lobbying;

    Abstract : This thesis work was conducted to explain how the radio spectrum is managed in the European Union (EU). The radio spectrum is the natural resource which makes modern wireless communication possible. Like other natural resources, the radio spectrum is managed by nations within their national territories. READ MORE

  6. 9. Smart Cooperation with Network Coding in Hierarchical Wireless Networks

    Author : Nan Li; Lars Kildehöj Rasmussen; Daniel Lucani; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wireless communications; Hierarchical networks; 5G; Cognitive radio; Internet of Things; Cooperative communications; Spectrum sharing; Network coding; Optimization; Performance analysis.; Electrical Engineering; Elektro- och systemteknik;

    Abstract : To achieve more dynamic, efficient and intelligent use of the scarce wireless spectrum resource, the concept of cooperation has been formalized into several hierarchical network models in future mobile networks. Cooperative communications, such as relaying, can potentially increase communication efficiency and spectrum utilization due to the broadcast nature of wireless networks, and may lead to a better support for diverse communication modes with flexible spectrum sharing. READ MORE

  7. 10. On Dynamic Spectrum Access in Cognitive Radio Networking

    Author : Said Rutabayiro Ngoga; Blekinge Tekniska Högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cognitive Radio; Cognitive Radio Networking; Dynamic Spectrum Access; Wireless Communications;

    Abstract : The exploding increase of wireless communications combined with the existing inefficient usage of the licensed spectrum gives a strong impetus to the development and standardization of cognitive radio networking and communications. In this dissertation, a framework for Dynamic Spectrum Access (DSA) is first presented, which is the enabling technology for increasing the spectral efficiency of wireless communications. READ MORE