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Free space performance comparison of MIMO terminal antennas in noise- and interference-limited urban environments

This contribution comprises a comparison of capacity performances of MIMO terminal antenna configurations for smart phones at 2.65 GHz, measured in an extensive 2×2 MIMO measurement campaign in noise- and interference-limited urban environments. Whereas, on average along the route, the performances where dictated by the received power, locally the eigenvalue dispersion of the communication channel

Minimizing the time spent on transformations between computer independent models and platform independent models

Abstract. A well known trade-off effect with modelling is that when it is user friendly it becomes ambiguous and when it has a formal notation, that makes it unambiguous, it becomes less user friendly. A well known solution to this dilemma is to use models on various levels of formalism where the least formalized models are known to be more user friendly and the most formalized models are well sui

Time-lapse seismic analysis of pressure depletion in the Southern Gas Basin

In the Southern Gas Basin (SGB) of the North Sea there are many mature gas fields where time-lapse monitoring could be very beneficial in extending production life. However, the conditions are not immediately attractive for time-lapse seismic assessment. This is primarily because the main production effect to be assessed is a pore pressure reduction and frame stiffening because of gas production i

Channel estimation and signal detection for UWB:

In this paper, we investigate channel estimation and signal detection for UWB communications. We first investigate channel estimation for UWB systems and then develop a minimum mean-square-error (MMSE) Rake receiver with joint timing and MMSE equalization. The key property of the estimator is that it uses sampling at UWB symbol rate (200Msamples/s), while estimating all relevant channel parameters

Biofuels for Transport in Europe: Lessons about Governance, Innovation and Sustainability

In the context of growing concerns over climate change and peak oil, biofuels for transport are attracting considerable support from the European Union (EU). However, the sustainability of biofuels is under increasing debate. Furthermore, the complexity of the biofuels industry (involving different resources and feedstock suppliers, different logistics providers and options, a range of technologie

Teaterns röda fana

Regular column on theatre in the weekly newspaper Arbetaren (The Worker).