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We study the joint design of optimal linear MIMO encoders and decoders for filtering and transmission of a vector- valued signal over parallel Gaussian channels subject to a real- time constraint. The objective is to minimize the sum of the estimation error variances at the receiving end. The design problem is nonconvex, but it is shown that a global optimum can be found by solving a related two-s
This paper presents a case study evaluating a retrospective analysis method, aimed at improving the release planning activity in project management. The method is based on a re-evaluation of candidate requirements for prior releases in order to uncover release planning decisions that would have been made differently today. The method aims at using the lessons learned during the analysis to find im
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We calculate the phase property of the reflection coefficient in two-terminal structures using a lattice tight-binding model. It is seen that, provided that there exist two coherent reflection paths, the reflection probability can be zero for certain electron energies. At these energies, the phase of the reflection coefficient shift abruptly by $pi$. Next, we study the reflection and transmissio
People who have visual impairments may have difficulties navigating freely and without personal assistance, and some are even afraid to go out alone. Current navigation devices with non-visual feedback are quite expensive, few, and are in general focused on routing and target finding. We have developed a test prototype application for Android in which a user may scan for map information using the
he regional coastal evolution model Cascade was enhanced to better describe the transfer and storage of sediment. Focus was on the cross-shore exchange of material from the subaerial to the sub-aqueous portion of the beach and on shoal evolution at coastal inlets. Cross-shore material exchange now includes erosion due to wave impact and overwash, and barrier and dune build-up by wind. Cascade was
Background: Despite the fact that old people´s technological needs have been payed much attention to in the last decennium, especially old users of information- and communication technology, technology has not found its natural place in research on ageing in modern societies. Purpose: This article examines to what extent social science research exist in the field of ageing and technology and where
This conference paper discusses queer theory in Sweden.
