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608 Uppsatser om Wireless networks - Sida 13 av 41

Gulliver Simulation - En systemarkitektur f or n atverkssimulering av

Nowadays, a lot of resources are spent on developing systems that will make it possible forvehicles to act autonomously, and make them more effective. One of the projects that isworking on this is the Gulliver Project. Gulliver has constructed a number of miniaturevehicles equipped with various sensors, to use as a physical testbed for autonomousdriving. One big disadvantage with this method is the long iteration time that occursduring the development and testing of a new software.This project has improved this process by developing a system architecture of a virtualtestbed where it is possible to simulate autonomus vehicles that communicates throughany type of wireless network. The testbed has made it possible to simulate autonomusvehicle systems that with a reasonable margin of error, acts like the system would actin a physical test.

Åtgärdsprogram för elever med svenska som andraspråk : En jämförande studie av fyra elevers åtgärdsprogram i två skolor

One of the essential needs of human beings is to be involved in a social context. The intention of this study was to see if the opportunity to have an iPod Touch, could make it possible for students with literacy difficulties to participate in the regular classes and if the implementation of iPod Touch in the school setting would result in informal learning outside the school. In this case study two pupils with literacy difficulties have been using an iPod Touch in their daily school activity. The pupils as well as their teachers have been interviewed about their experiences of implementing iPod Touch as a tool in the regular classroom teatching. The results indicate that iPod Touch can help students to be in inclusive education and that they use the iPod Touch outside school.

Representativa testnät försvenska eldistributionsnät

This project was started within the Market-Design programme of Elforsk, with the aim of developing representative test systems of Swedish distribution networks. Using such test systems as a basis for reliability and customer interruption cost calculations makes it feasible to analyse the network tariff regulation of Swedish power  istribution companies. In particular, it enables studies of the incentives for companies to invest in system reliability. Until now, the available test systems are either not representative of Swedish conditions, or too small in scale and limited in function.Within this project we have created two test systems. In order to represent the diversity of actual Swedish distribution networks, we have created one test system for urban environments and another for rural environments.

Aktörer, nätverk & information : Om informationsförmedling i det akademiska biblioteket

This study focuses on the encounter between the academic librarian and the academic library user with a specific need for information. The aim of the study is to examine the process of mediation of information and to uncover any inherent problems or systemic inertia that may occur within that process.Special attention has been given to information-seeking behaviour in the digital age and the possibility of viewing information literacy as a meta-literacy. The difference between the surface web and the academic invis- ible web is also investigated. Empirical data was collected by the use of ethnographic fieldwork at the Karolin- ska Institutet University Library over a period of five weeks. The data is analysed using actor-network theory as a point of departure.

Trådlösa nät och 3G för funktionshindrade

Genom hela arbetet har enkelhet och användbarhet varit ledorden. Detta för att man ska kunna implementera tjänster för en relativt liten målgrupp utan att behöva göra större investeringar. I linje med detta har möjligheter för att kunna erbjuda tjänsten till en större målgrupp och därmed få ned kostnaden per användare eftersökts.Rapporten börjar med en studie av 3G, WLAN och Bluetooth för att läsaren ska få en grund i de tekniker på vilka tjänsterna skulle kunna implementeras. Sedan diskuteras dagens tjänster och vilka önskemål om tjänster som framkommit från diskussioner med olika parter. Slutligen exemplifieras ett antal tjänster som skulle kunna tillämpas på dagens tekniker.Efter att ha läst rapporten skall läsaren ha fått en uppfattning hur mobila tjänster med hög överföringshastighet bör utformas för att underlätta kommunikation för funktionshindrade..

Signalanalys med ATLAS

On Ericsson Ltd in Borås a wireless communication system called MINI-LINK? is produced. In order to sell their product with the best possible quality guaranty, there is a signal processing circuit called ATLAS implemented in the system. This circuit would eventually be useful in the production and for the repairs of the radio units. Our commission was to examine the possibility for this use.

Sociala medier. En kvalitativ undersökning om sociala medier i Pr-verksamhet

This thesis was written by order of Rud Pedersen Public Affairs Company, a PR- consultancy firm located in Gothenburg. The assignment was to investigate social media in Pr- activities. The thesis is formed by three main categories:? What is social media?? Who are using social media?? How can you use social media in public relations?The information which is being presented in this thesis is based on academic reports, interviews and research on social media blogs and lectures. It is a qualitative approach since the purpose is to get a deeper understanding for the subject in question.

Pennygången. 12 familjer 36 vänskaper

The residential area Pennygången in Gothenburg is planned to be restored in a very expensiveway. As a consequence the rents will increase dramatically and about 80% of the peopleliving there today will have to move. Excisting social networks might be disrupted.The aim of this project is to illustrate a part of the present social network at Pennygången inthe form of a photobook.I have photographed 12 families in their homes. These families know each other in 36different ways. The final photobook illustrates all these friendships by presenting the familiesknowing each other in pairs..

Base stations for communication in obstructed environments

The purpose of this project was to produce signal relay stations that could receive information via 2.4 GHz radio and relay the information to a designated target station. If a relay station was located outside of signal range for the target station it was supposed to utilize other relay stations to transfer the information to the target station, so called multi-hop.The would-be application of the relay stations was orienteering. When an orienteer punches a checkpoint the signal stations would relay information of who punched the control, when it was punched and the checkpoint that was punched to the speaker tower in the goal area.The work resulted in prototypes which fulfilled the statement of purpose and was tested at an orienteering competition with satisfactory results. The performance of the prototypes was tested and found adequate for the would-be application..

Militära ?mobil-appar? : Den militära nyttan med kommersiell teknik för militära ändamål

The transformation of the Swedish Armed Forces is bringing about major changes in many areas. Indirect fire is one capability affected by these changes. Financial savings, a shrinking organization and higher eligibility requirements mean that fewer soldiers will gain access to exclusive high-tech support resources such as the JAS 39 Gripen aircraft and the ARCHER artillery system. This thesis aims to examine whether access to indirect fire capability can be increased through the use of civilian products and communication networks. Technology development in the civilian mobile communications area is exponential and nations such as the USA, facing challenges similar to those of the Swedish Armed Forces, devote substantial resources to research and development.

Utvärdering av den upplevda användbarheten hos CySeMoL och EAAT med hjälp av ramverk för ändamålet och ISO/IEC 25010:2011

This report describes a study aimed at uncovering flaws and finding potential improvements from when the modelling tool EAAT is used in conjunction with the modelling language CySeMoL. The study was performed by developing a framework and applying it on CySeMoL and EAAT in real life context networks.The framework was developed in order to increase the number of flaws uncovered as well as gather potential improvements to both EAAT and CySeMoL. The basis of the framework is a modified version of the Quality in use model from ISO/IEC 25010:2011 standard. Upon the characteristics and sub characteristics of this modified model different values for measuring usability where attached. The purpose of these values is to measure usability from the perspectives of both creating and interpreting models.

Offentliga rum och utsuddade identitetsbegrepp : en resa mellan det virtuella och det fysisika i tid och otid

Trough a literature study based on both philosophic and objective fact this essay is taking off in the meaning of public space. It investigates how the information society and its virtual world are affecting the idea and use of public space in the city. The city and the actual world have developed from the traditional meeting between people while the virtual world is based on flows of information. The information flow has expanded through the Information and Communication Technique (ICT). ICT covers among others Internet, mobile phones and computers.

Vem är du? : En studie om företags granskande av Facebook profiler

Title: Who are you? A study on companies reviewing of Facebook profiles.  Social media has opened up new possibilities in recruitment situations in forms of background checks on social networks such as facebook. Even though there are many advantages, there are few recruitment workers who choose to embrace the possibilities with social networking..

KONSTEN ATT KONSUMERA - En kvalitativ studie om föreställningar, materialitet och identitet inom Every Day Carry

The purpose of this thesis is to study how today?s consumer society can be understood from ananalysis of the phenomenon Every Day Carry (EDC). The aim is thus to problematize the daily useof the artifacts that surrounds us and investigate how these can be understood as networks of humanand non-human actors, aswell as identity- and meaning-making practices in today?s consumersociety.The theoretical and methodical framework is built upon an eclectic variety of consumptiontheories,Michel Callon?s, John Law?s and Bruno Latour?s work on Actor-Network-Theory,Discourse analysis inspired by Michel Foucault, Ernesto Laclau and Chantal Mouffe and anethnographic methodology specifically adapted for online research. The empirical material consistsof photographs and commentaries from two EDC blogs aswell as commentaries regarding EDCfrom a commentary field on Youtube.com.

Downloading and filesharing through Peer-to-peer networks: the copyright versus the free access to the cultural products

The “peer to peer” (P2P) is a technology of downloading and filesharing between online - Internet - users by the mean of specified software. Since June 1999, the Napster software has made the happiness of millions of individuals who used it to obtain and share free audio files Mp3. Rapidly, the major recording companies have prosecuted the Napster Company and managed to force it to close down. They were arguing against it for it is supporting the development on a large scale traffic of files protected by copyright and thus was threatening the whole music and movies economic world. Since fast Internet connections multiplied, "peer to peer" software and networks improved, so that this mode of exchange became an unprecedented success. Today all cultural products, in particular films and music, are concerned with this free –of– charge distribution without any financial counterpart for the copyright holders. Two tools hold today the top ranks and concentrate large traffic: eDonkey and eMule.

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