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We consider the capacity of multiple-input-multiple-output (MIMO) systems with reduced complexity. One link end uses all available antennas, while the other chooses the "best" L out of N antennas. The selection of the optimum antenna subset requires an exhaustive search of all possible combinations, involving (/sub L//sup N/) computations of determinants of size L /spl times/ L, which can become p
The parallel structure of dataflow programs and their support for processing streams of data make dataflow programming an interesting tool for doing stream processing on parallel processing architectures. The computational kernels, the actors, of a dataflow program communicate with other actors via FIFO channels. The actors in the dataflow model used in this paper may perform different actions dep
Recently, optimal linearly constrained minimum variance (LCMV) filtering methods have been applied to fundamental frequency estimation. Such estimators often yield preferable performance but suffer from being computationally cumbersome as the resulting cost functions are multimodal with narrow peaks and require matrix inversions for each point in the search grid. In this paper, we therefore consid
In multiowner wireless networks, access points (APs) are owned and operated by different administrations, leading to significant authentication delays during handoff between APs. We propose to exploit the trust between the owners of neighboring APs for reducing the authentication delay. In the proposed authentication scheme, neighboring APs that trust each other share the security key for the visi
With a growing trend of electrification of vehicles there is a need for more flexible and advantageous charging options that reduce EV limitations. To overcome these limitations, dynamic charge through Electric Road Systems (ERS) is in development, and fast charging stations are being deployed all over the world. This thesis focuses on combining the use of both technologies, attempting to use an E
With a growing trend of electrification of vehicles there is a need for more flexible and advantageous charging options that reduce EV limitations. To overcome these limitations,dynamic charge through Electric Road Systems (ERS) is in development, and fast charging stations are being deployed all over the world. This thesis focuses on combining the use of both technologies, attempting to use an EL
Ad hoc networks, being able to organize themselves without user intervention, can easily provide their users with mobility, multimedia support and group communication. However, they have to combine quality of service (QoS) and multicast routing strategies. This article defines the resource management and admission control components of the ad hoc QoS multicast (AQM) routing protocol, which achieve
Syftet med uppsatsen är att undersöka vad framgång är i dagens skandinaviska elitfotbollsklubbar och vilka strategier som är användbara för att uppnå denna. Uppsatsen ämnar således belysa och klargöra de viktigaste aspekterna i en lyckad strategi inom en modern skandinavisk fotbollsklubb. Med denna kunskap har vi för avsikt att återge en bild över hur en elitfotbollsklubb strategiskt bör organiser
Executive summary This master thesis was originally based on a specific assignment given to the authors from ABB Full Service, a unit specializing in providing maintenance outsourcing: “How can ABB Full Service expand its offering of providing fundamental maintenance by seamlessly incorporating the business concept with competencies and solutions from other ABB divisions?” The academic issue was d
Följderna av narkotikamissbruk kostar samhället stora summor pengar varje år. Att beräkna den exakta storleken på dessa summor är omöjligt, eftersom stora delar av den narkotikarelaterade verksamheten är olaglig. De kostnadsberäkningar man kan göra blir ungefärliga uppskattningar. Ändå är det viktigt att försöka, eftersom den kunskap man har om kostnaderna för narkotikamissbrukets konsekvenser utg
A study related to the development and characterization of a new gene delivery system was performed. The approach consists in both the pre-condensation of plasmid DNA with an arginine-based cationic surfactant, arginine-N-lauroyl amide dihydrochloride (ALA), which was found not to be toxic, and the incorporation of the blood protein transferrin (Tf) into the formulations.Two cationic liposome form
Background: There are many theories regarding internationalisation and growth but not much is written about the subject in a combination with the online business field. As Internet actors are increasing in number, the area is interesting in several aspects. Purpose: The purpose of this study is to define important factors regarding internationalisation of online service providers. Method: A litera
Uniform control and coordination of immigrant children’s vaccination is a critical current problem in the Swe-dish child health safety work. In this paper we discuss the Business Rules (BR) centric and SOA architected digital service VacSam. VacSam incorporates principles of SOA, Business Rules Approach, and Business Pro-cess Management. The incorporation is used for deriving VacSam from a part of
Min uppstas syftar till att få reda på de argument som låg till grund för kriminaliseringen av sexuell tjänst som kom 1999 och varför endast köparen kriminaliserades. Min uppsats sträcker sig över en lång period från 1977-2011. Vad jag fann var att samhället i stort gick från en syn på att prostitution var ett problem för mannen, kvinnan och samhället i stort till att allt mer rikta in sig på att
