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608 Uppsatser om Wireless networks - Sida 20 av 41
Testramverk för distribuerade system
When developing software that is meant to be distributed over several different computers and several different networks while still working together against a common goal there is a challenge in testing how updates within a single component will affect the system as a whole. Even if the performance of that specific component increases that is no guarantee for the increased performance of the entire system. Traditional methods of testing software becomes both hard and tedious when several different machines has to be involved for a single test and all of those machines has to be synchronized as well.This thesis has resulted in an exemplary application suite for testing distributed software. The thesis describes the method used for implementation as well as a description of the actual application suite that was developed. During the development several important factors and improvements for such a system was identified, which are described at the end of the thesis even though some of them never made it into the actual implementation.
Rörelsebaserad kommunikation i mobila ad hoc-nätverk
I många nätverk antas det att någon form av fix infrastruktur existerar och att nätverkets olika noder kan använda denna för att kommunicera med varandra. I ett ad hoc-nätverk antar man att det inte finns någon fix infrastruktur och att noderna måste använda varandra för att kunna kommunicera. Ett exempel på ett ad hoc-nätverk kan vara bärbara datorer sammankopplade med infraröda länkar under ett möte. När ad hoc-nätverket är mobilt innebär det att noderna rör sig.I detta arbete har de tre protokollen Epidemic, GeoMean och GeoMove tillsammans med de två rörelsemodellerna Waypoint och den utökade slumpmässiga vandringen implementerats i en nyskriven simulator för denna typ av nätverk.De två Geo-protokollen är nyutvecklade och syftar till att använda geografisk information för att underlätta kommunikationen i denna kategori av nätverk tillsammans med den nya utvidgade slumpmässiga vandringsmodellen..
Drömmar om ett hemland : Diasporisk identitet och transnationella nätverk i mångfaldens Sverige
Detta är en kvalitativ studie vars huvudfokus belyser hur två etniska folkgrupper, ?assyrier/syrianer? samt bosniaker förhåller sig till sin etniska identitet utanför ursprungslandet och hur dem ser på att leva i diasporiska grupper. Studien behandlar även betydelsen av transnationella nätverk och förbindelser över nationsgränser. Diasporiska grupper har kommit att utveckla transnationella nätverk som överskrider nations gränser och människor liv påverkas dagligen direkt samt indirekt av att leva mellan två identiteter. Det finns människor i samhället som drar nytta av denna kulturella rikedom som finns inom etniska och kulturella föreningar men det finns även dem som ser begräsningar inom samhället genom att ha två identiteter. .
Mötesindustrin : samarbete, nätverk och värdeskapande
Background: The meeting industry has had undergone a extensive changes due to a number of factors. The globalization has meant that supply increases and congress organizers have more options to choose from. Development in communications, for instance internet, means that meetings can take place without a physical presence. Congress organizers as clients have also changes. Stockholm as position as a leading city to hold congresses in has also changed for the worse, in 2006 Stockholm dropped of the top-10 list.
På väg mot flerstämmighet : Svenskämnet och medialiseringen
Abstract The use of electronic media plays an important part in the life of youth and especially Internet and mobile phones are important in the social and cultural networks of youth. The first step of this thesis is to examine the ICT-based activities of upper secondary school students through an online survey. The second step is to examine what didactic implications can be derived from the ICT-based activities in the subject of Swedish. Results from this survey and national and international research show that young people spend the majority of their leisure time on the Internet. The result also shows that media activities displace other school related activities such as traditional reading and writing.
Utveckling av en ytmonterad fördelningsmätare som underlag för individuell debitering av vattenförbrukning i fastigheter
The master thesis, conducted at Metrima AB, concerns the development of a non-intrusivedistribution meter as a basis for individual tap water billing in apartments.The project is conducted in response to the market interest in individual tap water billing inapartments as an answer to environmental concerns regarding water consumption. Due to thehigh installation cost of traditional water meters, a new method of determining waterconsumption, without having to cut water pipes, is proposed.The proposed method distributes the total water consumption for an apartment complex toindividual apartments according to distribution meters, measuring water run-time, in eachapartment. The water run-time is estimated by measuring the water pipe?s outward vibrationsand temperature changes.A test environment was established and a prototype built, using a tilt- and vibration sensor forvibration sensing and a precision temperature sensor to measure temperature changes. As bothsensors work well in the test environment, further testing was done in 3 apartments for aduration of 5 days.
Larmrutiner och samverkan vid hot om suicid : -i Karlstadregionen
Literature describes what it is like to be a leader in the healthcare and what is looked upon as the most characteristic quality for female leadership. Women often use a leadership technique that motivates the employee and they allow themselves to develop a humanitarian leadership. The aim of this study was to describe female head nurses? experience of their leadership in healthcare. The collection of data has been carried out from interviews.
Access to the market - a question of collaboration?
When contemplating entering an alliance the rationale behind the decision should differdepending on the size of the companies involved as well as on other important factors. The importantfactors influencing the decision are related to the resource pooling potential of the alliance,the power structure along with the business network the companies are a part of. Theanalysis has shown proof of a need for cooperation if one wish to succeed in the telecommunicationindustry and it has also determined which resources that are deemed to be most important toget in touch with, for our study object, to facilitate its access to the market. Those resources aredefined as a direct channel to the customer, funds/capital and the access to relevant businessnetworks. To get in touch with these lacking resources, three alternative approaches has beenproposed; all of them involving a strategic alliance decision.
WAP-lösning för köbokning i offentliga serviceinrättningar
Vi har utvecklat och utvärderat en prototyp som skulle kunna användas för att tilldela könummer i den offentliga servicesektorn. Prototypen är utvecklad i programspråket Visual basic och är konstruerad för att kunna simulera en vanlig köautomat. Rapporten innehåller en hel del information och betraktelser inom området WAP, allt lagt på en förklarande nivå. En stor del av arbetet och denna rapport är också tillägnat implementeringen av en Perl databas. Perl har ett mycket bra stöd för de flesta databaser.
Trådlös strömning av en ljudsignal till multipla mottagare
I detta examensarbete har det undersökts vilken teknik för trådlös kommunikation som passar bäst att användas då en ljudsignal ska strömmas trådlöst till multipla mottagare. De tekniker som jämfördes var Wi-Fi och Bluetooth. Andra tekniker för trådlös kommunikation, ZigBee, ANT+ och NFC, valdes bort för att deras maximala datahastighet eller räckvidd inte var tillräcklig. 3G och 4G valdes bort för att det krävs en licens för att få använda dessa. Som mottagare skulle i första hand Android- och iOS-mobiltelefoner användas.
Att dela med sig av sin vardag : En studie om fotoapplikationen Instagram
Photography has long been of importance for humans in aspects of community, sharing and documenting. It has previously only existed in analogue format and with larger cameras. We have presently reached a new generation of cameras and photography. The new smaller compact cameras that are provided with most cellular phones take digital images of varying quality and accounts for a large part of photography. With the emergence of social media, photography and social interaction combined came photo applications with different features.
Nätverksdemokrati -vad bör, är, kan den vara
The main objective of the essay is to define the meaning of the termgovernance network on the basis of democratic values ? both normative andimperial - with the aim to analyse the prospects to develop an effective anddemocratic governance. Democratic values as well as civil participation,enlightenment, responsibility and approachability are discussed, but also moreeffectivness orientated values.It is clear from the presentation how normative and democracy models putdifferent values in focus, with the consequence that other values are played downor pushed aside. Compared to imperial research in partnership ? by definition atype of network arrangement - and with a starting point in democracy andefficiency, the networks are discussed as political formation.In what sense can the actual existing network arrangements meet and fulfil thedefined political values? As no straight forward answer exists, there is an ongoingconflict between the political demand for slowness and the effectiveness demandfor flexibility and mobility..
Mötesindustrin : Kongresser : samarbete, nätverk och värdeskapande
Background: The meeting industry has had undergone a extensive changes due to a number of factors. The globalization has meant that supply increases and congress organizers have more options to choose from. Development in communications, for instance internet, means that meetings can take place without a physical presence. Congress organizers as clients have also changes. Stockholm as position as a leading city to hold congresses in has also changed for the worse, in 2006 Stockholm dropped of the top-10 list.
Kolmogorov-Arnold N?tverk, Framtidens AI?
Artificiell intelligens integreras idag i alltfler tekniska system. Trots det, ?r det fortfarande
sv?rt att i praktiken implementera modeller fr?n grunden p? grund av h?ga resurskrav i form
av data och ber?kningskraft. Detta motiverar s?kandet efter effektivare modeller.
I denna artikel unders?ks Kolmogorov Arnold Networks (KANs), en alternativ arkitektur
av neurala n?tverk och j?mf?rs med traditionella arkitekturer som multilayer perceptrons
(MLPs) och faltningsn?tverk.
How streaming media can be used in commercial mass
distribution
Mass distribution with techniques as multicast and peer-to-peer are becoming increasingly important in the Internet. Today the distribution of sound and video over Internet, so called streaming media, is static due to the unicast method. This results in a linear increase of distribution costs and therefore no conditions for commercial scalability. This thesis describes why multicast may be the only scalable alternative for commercial mass distribution of streaming media over Internet. Mass distribution through peer-to-peer technology promises a lot but is fronting a couple of great challenges, for example asymmetric bandwidth, locality and legalization.