Search for dissertations about: "telecommunications"

Showing result 1 - 5 of 640 swedish dissertations containing the word telecommunications.

2. 1. Aperiodic Array Synthesis for Telecommunications

   Author : Carlo Bencivenni; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; PtP; mutual coupling; SATCOM; compressive sensing; aperiodic array; density taper; MU-MIMO; maximally sparse array; LoS-MIMO;

   Abstract : Arrays of antennas offer important advantages over single-element antennas and are thus a key part of most advanced communication systems. The majority of current arrays are based on a classical regular layout, which offer simple design criteria despite some limitations. READ MORE

4. 2. The impacts of network effects and multi-service provision on consumer switching costs in the Swedish telecommunications market

   Author : Pratompong Srinuan; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; broadband Internet; switching costs; tariff-mediated network effects; local network effects; calling clubs; Sweden; multiple-service; termination-based price discrimination;

   Abstract : The Swedish telecommunications market has been liberalised since 1990s. Liberalisation gave an opportunity to several new entrants to enter to the market. Consumers also gained benefits from more telecom providers and services to choose from, and lower telecom prices. READ MORE

5. 3. A flexible framework for detection of feature interactions in telecommunication systems

   Author : Gustaf Naeser; Bengt Jonsson; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computer Systems; Datorteknik;

   Abstract : The complexity of today's telecommunications systems grows with each new feature introduced. As the number of services an operator provides can be used to gain advantage over competitors the number of services will continue to increase. READ MORE

6. 4. Applications of Soft Computing Techniques for Wireless Communications

   Author : Maria Erman; Ingvar Claesson; Blekinge Tekniska Högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : This thesis presents methods and applications of Fuzzy Logic and Rough Sets in the domain of Telecommunications at both the network and physical layers. Specifically, the use of a new class of functions, the truncated π functions, for classifying IP traffic by matching datagram size histograms is explored. READ MORE

7. 5. Human perception in speech processing

   Author : Volodya Grancharov; Bastiaan Kleijn; Peter Kabal; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; quality assessment; speech enhancement; postfilter; Telecommunication; Telekommunikation;

   Abstract : The emergence of heterogeneous networks and the rapid increase of Voice over IP (VoIP) applications provide important opportunities for the telecommunications market. These opportunities come at the price of increased complexity in the monitoring of the quality of service (QoS) and the need for adaptation of transmission systems to the changing environmental conditions. READ MORE