Satellite services in the High North are utilized extensively for both communication purposes and for earth and climate observations. This paper presents results of two year measurements at 20 GHz and co-sited meteorological data. The results suggest that with 7–8 dB margin, services can be provided...

The requirements for data rate and capacity in wireless communication systems have increased dramatically over the last couple of decades, and it is expected that this increase will continue in the years to come. Including higher frequency bands providing additional bandwidth is a key strategy to me...

Data from a weather radar located above the polar circle in the North Sea are used to estimate the rain attenuation for a satellite link towards a geostationary satellite operating at Ka-band. Radar reflectivity data are obtained along the slant path from a beacon receiver located close to the radar...

This paper describes the main objectives and early achieved results from the MARENOR project. MARENOR is financed by the Research Council of Norway as well as Norwegian industry partners from oil and gas (EM survey company EMGS), fisheries (shipping company and shrimp trawler Remoy), positioning and...

A critical point in cognitive radio spectrum sensing is the ability to detect presence and absence of primary users as fast as possible at very low SNR. In this paper, sequential power detection by cumulative sum and recursive generalized likelihood ratio test is used to detect free spectral slots o...

ANTARES is a study within the Iris Programme of the European Space Agency, to design a satellite communication system that will provide ATM services over Europe and the surrounding oceanic areas beyond 2020-2025. As part of the development phase, the interference level that can be expected to be exp...

A critical point in cognitive radio spectrum sensing is the ability to detect presence and absence of primary users as fast as possible at very low SNR. In this paper, sequential power detection by cumulative sum and recursive generalized likelihood ratio test is used to detect free spectral slots o...

We study the use of reinforcement learning to model Dynamic Spectrum Access in a realistic multi-channel environment. Three different approaches from the literature on the multi-armed bandit problem are compared on a set of realistic channel access models — two are based on stochastic models of the ...

In order to meet the demand for increased capacity in wireless networks, incorporating femtocells within the coverage of macrocells constitutes one of the strategies that currently receives most attention from both industry and academia. Femtocells may either be part of a HetNet as standardised with...