European Scientific Cooperation

European Cooperation in the Field of Scientific

It has been shown that the concept of "keyholes" in MIMO channels could be responsible for a reduced transmit/receive diversity performance, and therefore a reduction of capacity with respect the maximum available radio link capacity. In the present work, we further analyse this effect in terms of coupling between an input wave impinging on the keyhole, and several output waves due to diffracti...

European Cooperation in the Field of Scientific

European Cooperation in the Field of Scientific and Technical Research

The relative permittivity of LCP material has been characterized within the whole 60 GHz frequency band using the microstrip ring resonator (MRR) method. Using a circuit model, the gap capacitance of the MRR has been taken into account in order to improve the accuracy of the determined relative permittivity. The results show that the relative permittivity of LCP is almost constant (εr ≈ 3.1) wi...

European Cooperation in the Field of Scientific and Technical Research

To dimension cellular wireless networks, accurate estimates of the cell throughput have to be available. Consideration of all requirements of future packet-switched networks, especially the impact of scheduling, leads to extensive system level simulations that have to be performed in order to obtain the cell throughput. A semi-analytical methodology is proposed in this paper that is able to giv...

European Cooperation in the Field of Scientific and Technical Research

This paper proposes simplified antenna model and a position estimating approximation for a system level simulation of advanced handover protocols with smart antennas. This models have been implemented in our simulation tool MOSIT that is based on the Specification and Description Language SDL (ITU Z.100). One application of our simulation tool is the examination of a new approach for a advanced...