Models for exposure assessment of high frequency electromagnetic fields from mobile phone base stations need the technical data of the base stations as input. One of these parameters, the Equivalent Radiated Power (ERP), is a time-varying quantity, depending on communication traffic. In order to determine temporal averages of the exposure, corresponding averages of the ERP have to be available....

We consider extensions and improvements on our previous work [1] on dynamic adaptive video streaming in a multi-cell multiuser “small cell” wireless network. In [1] we treated the case of single-antenna base stations and, starting from a network utility maximization (NUM) formulation, we devised a “push” scheduling policy, where users place requests to sequential video chunks to possibly differ...

This paper considers cooperation between primary and secondary users in shared spectrum radio networks via caching. A network consisting of a single macro (primary) base-station and multiple small (secondary) base-stations is considered. Secondary base-stations can cache some primary files and thereby satisfy content-requests generated from nearby primary users. For this cooperative scenario, w...

Paralysis is the result of a block in the information pathway between the brain and the limbs. Patients losing bodily control in this way are unable to move as they need to and are, therefore, unable to look after their own needs. The goal of this paper is to design a functioning quadrotor drone that will respond to a patient’s brain activity and accordingly enables them to have normal daily fu...

The following NDSC stations have been included as ozonesonde stations so far and are supposed to deliver sonde data to the NDSC data base: Ny-Ålesund, Thule, Eureka, Observatoire de Haute Provence, Mauna Loa, Lauder, Dumont d’Urville, McMurdo, South Pole. One should consider whether more stations should be included as there are more NDSC stations with ozonesonde facilities either at the site or...

Future radio access networks (RANs) will activate and deactivate base stations (BSs) depending on the activity of users to conserve energy. Reducing the fraction of time a BS is enabled will reduce the energy consumption of the RAN. Using cooperative transmissions from BSs allows to reach user equipment (UE) that is not in range of any single BS. When some BSs cooperate, other BSs can be deacti...

Radio communication systems of the future will require a large increase in user capacity. To achieve this, cell sizes will reduce and the number of base stations will increase. Current base station architectures use analogue combining techniques which are expensive, voluminous and inflexible. This thesis investigates a Digital Signal Processing (DSP) solution which produces a cheaper, smaller a...

Coverage spectral efficiency (CSE) characterizes the tradeoff between efficient channel reuse and the achievable rates per cell, under the assumption of detection by a single base station and intra-cell FDMA. It is well known that intra-cell FDMA is not in general optimal. In this paper we study an alternative intracell wide-band scheme as well as the base station cooperation in detection, whic...