Blar i Fakultet for informasjonsteknologi og elektroteknikk (IE) på emneord "Telekommunikation"
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Efficient Space Domaine Method of Moments for Large Arbitrary Scatterers in Planar Stratified Media
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:100, Doctoral thesis, 2004)Keywords : Conjugate gradient fast Fourier transform (CG-FFT), Discrete complex image method (DCIM), Electric field integral equation (EFIE), Frequency selective surfaces (FSS), Generalized pencil-of-functions (GPOF), ... -
Encrypted Computation
(Dr.ingeniøravhandling, 0809-103X; 2001:67, Doctoral thesis, 2001)The ability to construct software, call it a functional ciphertext, which can be remotely executed in encrypted form as an entirely self-contained unit, has the potential for some interesting applications. One such application ... -
Joint Source-channel Coding: Development of Methods and Utilization in Image Communications
(Dr. ingeniøravhandling, 0809-103X; 2001:76, Doctoral thesis, 2001)In a traditional communication system, the coding process is divided into source coding and channel coding. Source coding is the process of compressing the source signal, and channel coding is the process of error protection. ... -
Optimal Bit and Power Constrained Filter Banks
(Dr. ingeniøravhandling, 0809-103X; 2000:7, Doctoral thesis, 2000)In this dissertation, two filter banks optimization problems are studied. The first problem is the optimization of filter banks used in a subband coder under a bit constraint. In the second problem, a multiple input multiple ... -
Peaking Capacity in Restructured Power Systems
(Dr. ingeniøravhandling, 0809-103X; 2000:100, Doctoral thesis, 2000)The theme of this thesis is the supply of capacity during peak demand in restructured power systems. There are a number of reasons why there is uncertainty about whether an enegyonly electricity market (where generators ... -
Perforated Panel Absorbers with Viscous Energy Dissipation Enhanced by Orifice Design
(Dr. ingeniøravhandling, 0809-103X; 2000:67, Doctoral thesis, 2000)Currently, there is a great interest in panel absorber design where porous components are excluded due to environmental and cleaning considerations. For such absorbers, the challenge is to increase the natural, viscous ... -
Practical Thermal and Electrical Parameter Extraction Methods for Modelling HBT´s and their Applications in Power Amplifiers
(Dr. ingeniøravhandling, 0809-103X; 2003:20, Doctoral thesis, 2003)A new practical technique for estimating the junction temperature and the thermal resistance of an HBT was developed. The technique estimates an interval for the junction temperature. The main assumption in the new technique ... -
Propagation Models for Dimensioning and Estimation of Performance and Availability of New Satellite Communication Systems
(Dr. ingeniøravhandling, 0809-103X; 2001:28, Doctoral thesis, 2001)A rapid growth of new satellite systems utilizing the Ka-band (27 – 40 Ghz) and even higher frequencies is expected in the coming years. The services offered will include broadband communication, interactive broadcasting, ... -
Quality of service differentiation, teletraffic analysis and network layer packet redundancy in optical packet switched networks
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:122, Doctoral thesis, 2005)Optical Packet Switching (OPS) has emerged as a promising candidate for the next-generation Wavelength Division Multiplexed (WDM) based alloptical network. By enabling packet switching in the optical domain, OPS networks ... -
Quality of Service, Traffic Conditioning and Resource Management in Universal Mobile Telecommunication System (UMTS)
(Dr. ingeniøravhandling, 0809-103X; 2003:6, Doctoral thesis, 2003)The successful deployment of Universal Mobile Telecommunication System (UMTS) is heavily dependent on Quality of Service (QoS) to be achieved. This thesis addresses a few facets of the QoS issues in UMTS, including traffic ... -
Real-Time Phase Ambiguity Resolution in Global Navigation Satellite Systems
(Dr. ingeniøravhandling, 0809-103X; 2001:104, Doctoral thesis, 2002)This dissertation focuses on real-time carrier phase ambiguity resolution for high precision solutions in Global Navigation Satellite Systems (GNSS). In order to exploit the full accuracy potential, one must be able to ... -
The Optimization Algorithm rFSQP with Application to Nonlinear Model Predictive Control of Grate Sintering
(Dr. ingeniøravhandling, 0809-103X; 2001:74, Doctoral thesis, 2001)This thesis contributes to the research on optimization algorithms for nonlinear programming, and to the application of such algorithms to nonlinear model predictive control. Regarding the contribution to research on ... -
Three-Dimensional Radio Channel Modeling for Mobile Communications Systems
(Dr. ingeniøravhandling, 0809-103X; 2001:89, Doctoral thesis, 2001)The work described in this report is within the area of three-dimensional (3D) radio channel modeling for mobile communications. The focus was towards rural areas, because radio coverage of rural areas is more costly when ... -
Towards Plug-and-Play Services: Design and Validation Using Roles
(Dr. ingeniøravhandling, 0809-103X; 2003:47, Doctoral thesis, 2003)Today telecommunication service users expect to access a similar set of services independently of what network they happen to use, they expect services to adapt to new surroundings and contexts as they move around, and ...