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1070 Uppsatser om Wireless network - Sida 11 av 72

Att plantera LÖK:ar för att undkomma osäkerheten: en studie av myndighetssamverkan kring introduktionen av nyanlända flyktingar och andra invandrare

The purpose of this project was to find an understanding for why public agents working with introduction of immigrants have decided to co-operate and co-ordinate their efforts. Another purpose was to gain insights in what characterizes this co-operation.Seven interviews were made with practitioners working with these questions on national-, regional- and local levels. The material gathered in this process was then analysed using governance theory and more specific the parts dealing with Joined- up government and Whole- of Government. Two analytic tools were used in the analysis: wicked problems and network.The first of these, wicked problems, was made operational by the use of insecurities. Analysing the interviews along these lines proved very useful in explaining why public agents have decided to try to work together.

Power supply monitoring for wireless sensor platforms

Most of the portable electronic devices use a battery as a primary power source. Nowadays, when the applications are becoming smaller and smaller and more power efficient, the designer needs to concentrate more on reducing power consumption, using secondary power sources and introducing power storage devices. Multiple power source availability and a power storage device on the board will make the applications much more useful and efficient in everyday use. This thesis proposes a power supply unit (PSU) for wireless sensor platforms which is capable of supplying a sensor node with energy from multiple sources, as well as status information from the PSU. Present power storage devices, like electric double-layer capacitors (EDLCs) and batteries, have become more and more common as their characteristics have developed.

Från bortskämda monopolbarn till en kamp för överlevnad : En fallstudie om de traditionella flygbolagens omstruktureringar efter lågprisbolagens framväxt

The purpose of this paper is to examine how the traditional airlines' strategies are affected by the low-cost carriers emergence and their business model and in wich ways they can achieve profitability. Furthermore we also want to examine the factors that affect the airlines' efficiency and competitiveness.The results of this study shows that the growth of the low-cost carriers have affected the network airlines' strategies as they, among other things, had to also lower their fares. This has forced them to revise their cost and efficiency in their entire operation. The result has also shown that the network companies can not come down to the same level of low costs as the low-cost carriers, and must therefore examine their ability to increase revenues instead. .

Vem kliar min rygg? : En studie av företagares uppfattning om personliga nätverk

AbstractPeople and organizations that network with one another have during the past decades, at a larger extent than before, replaced classical hierarchies. These networks have become increasingly important, as the globalisation has amplified the pressure for focused and flexibleorganizations. There is a risk of restraining the inventiveness of the firm and force customers and suppliers into cooperation by a too great commitment and dedication to the network. There are two sides to every penny, positive and negative aspects of networking.Concerning the negative approach to networking, there is relatively little theory present. The theory is regarded an emerging theory.

Sociala nätverkets betydelse för vägen ur hemlöshet : En narrativ studie

The aim of this study was to use stories from three people who previously lived in homelessness to increase the knowledge of the social network's impact on the process of exiting homelessness. In order to answer our questions, whether the social network facilitated or hindered the way out of homelessness, we have used a narrative method to take advantage of these person's life stories. As a theoretical perspective, we used the ecology of human development, based on the idea that human development occurs in interaction with their environment at different levels. Results showed those interviewees' networks had a significant impact on their path out of homelessness and that these relationships both facilitated and hindered this process. At the same time, these relationships affected our interviewees in different ways and were found in various areas of life, which indicates that there is more than one way out of homelessness.

Den användarskapade elden Risker och möjligheter med kriskommunikation i sociala online-nätverk

Title The User Created Fire ? Risks and Opportunities with Crisis Communication in Social Network SitesAuthor Charbel SaderCourse Master Thesis in Media? and Communication Studies, Department of Journalism and Communication, University of GothenburgSemester Spring semester of 2013Tutor Nicklas HåkanssonNumberof pages 75Purpose To find a deeper understanding of the digital media?s role in Swedish society in relation to crisis communication.Method Qualitative approach using focus group interviewsMaterial Semi structured focus group interviews with a total of 18 participants in five groups. The focus group sessions were made during February, March and April 2012.Main results The main findings in this study are that users expect the communication flow in social network sites (SNS) during a crisis is to be a shortcut to information without a detour through organizations or traditional media. Although we find personal gratification, like interpersonal communication, quick information and sharing feelings and experience with others by using SNS during a crisis, users also tend to be hesitant about the credibility of the shared information. Alongside the user created content, we look to professional media experts and organizations as a guarantee for the veracity of the shared information.

Mer värde i mobilen och mindre i plånboken - En fallstudie av mobila betalningslösningars genomslag i Sverige

This thesis presents the question of a possible breakthrough for mobile payment solutions in Sweden. The way payments are made and the way cash is being used in the society is changing. To be accepted as an alternative method, if cash isn't king anymore, the new technology will have to acquire user acceptance. In this thesis a case study of Swish, a mobile payment solution for P2P-payments, is presented. The focus of the study is customer value and technology acceptance of the service.

User Interface Design for Analysis of Sensor Systems

In the future network-based Swedish Defence (NBD), attaining information superiority will be of great importance. This will be achieved by a network of networks where decision-makers, information- and weapon-systems are linked together. As a part of the development of NBD, we have performed a study of user interface design for a future network-based tool package for analysis of sensor systems, referred to as the C2SR-system. This thesis was performed at Ericsson Microwave Systems AB, Sensor and Information Networks, during the autumn 2002. A pre-study concerning the requirements of usability, trustworthiness and functionality of a user interface for the C2SR-system was performed.

Efficient Frequency Grouping Algorithms for iDEN

This Master?s Thesis deals with a special problem that may be of importance when planning a frequency hopping mobile communication network. In normal cases the Frequency Assignment Problem is solved, in order to plan the use of frequencies in a network. The special case discussed in this thesis occurs when the network operator requires that the frequencies must be arranged into groups. In this case the Frequency Assignment Problem must be solved with respect to the groups, i.e.

En Survey av NFC och NFC-Protokoll med Fokus på Säkerhetsaspekterna

Near Field Communication (NFC) is a short range wireless communication technology that enables data exchange between devices. NFC is used in many different areas, from subway tickets to authentication systems. This paper presents possible security threats to Near Field Communication and documented attacks that have been used to target various NFC protocols. Weaknesses in different NFC protocols will be presented and suggestions on how to counter certain weaknesses will be discussed. This survey will be valuable for companies interested in protecting their data when using or planning to use NFC systems..

Open source site survey-mjukvara : utvärdering av stöd för att bygga trådlösa nätverk

Målet med detta arbete är att utveckla och utvärdera ett shadergrafsystem med stöd för ?era shaderspråk. Fokus ligger på implementationen av en prototyp och hur dess delar fungerar. Prototypen utvärderas med hjälp av ett par experiment för att se hur användbart systemet för datorspel. Experimenten visar att systemet kan användas istället för traditionellt handskrivna shaders och på så vis avlasta programmerare och ge mer kontroll till gra?ker..

Gruppverksamhet för barn till missbrukare : en jämförande studie av två gruppmodeller

In Sweden approximately ten percent of all children grows up in a family where at least one parent is having an alcohol related addiction. Since 1998 the development of group activities for children in this situation has been immense. The aim of group activities is to break the child's isolation and make them feel that they are not lonely in their experiences, give them knowledge about addiction and relive the pressure of guilt and responsibility.In a comparative study we examined studied how two different group activity models one with the conception of illness and one without, use the children's network to support the group process. The aim was also to find each models definition of the "normal family", since we understood the groupactivity as a part in the normalization process. We reached our aim through interviews with group leaders and by literature studies.

Effektiva gränsorganisationer: en fallstudie av regionkontoret North Sweden European Office

Regional European Offices with the purpose to represent regions and municipalities in the EU-system have had a substantial expansion over the last years. One example is the North Sweden European Office for the counties of Norrbotten and Västerbotten, consisting of seven different headmen who are representing both the private sector as well as the public system. This diverse leadership representation makes North Sweden a very good example on a so called Quango, organisations that stand under simultaneous influence from both public and private sectors. These Quangos opens up new possibilities to solve public problems, but they also bring together two different working models which is not always easy to handle for a Quango. According to earlier surveys some characteristic Quango problems within North Sweden exist, for example the ability to prioritize and thereby be as effective as possible.

Problem med trådlösa nätverk

Målet med detta arbete har varit att besvara frågan; ?Varför uppstår det så mycket problem med trådlösa nätverk??. Detta har gjorts genom att studera relevant litteratur för att sedan kunna utföra två egna studier: en enkätundersökning och tre experiment. Teorin har framförallt hämtats ur kurser och material från Cisco. Undersökningen har hjälpt till att fastställa den generella datoranvändarens kunskaper om trådlösa nätverk.

Implementation of an FFT algorithm using a soft processor core

This report deals with the modeling of a part of the communication system based on the IEEE 802.11a standard which represents the next generation of wireless LAN with greater scalability, better interference immunity and significantly higher speed, up to 54 Mbps. 802.11a uses Orthogonal Frequency Division Multiplexing (OFDM) where modulation is performed by an IFFT and the demodulation by an FFT. After modeling the FFT in Matlab and C, the FFT implementation has been validated using a soft microprocessor core by Xilinx (Microblaze) and the results were compared..

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