Wireless Application Development has become a major area of research in recent times. With the increasing availability of wireless technologies such as cellular, Bluetooth, Infrared etc. it has become essential to develop applications that suit the various types of hardware that support such wireless technologies. The goal of this thesis is to explore the motivations behind application development methodologies and the tools associated with it, for small mobile devices that employ cellular technologies. Due to extremely high demand of cell phones among people who have over the years become extra mobile, there has been a trend of decreasing costs for users for the last several years. As more people start using these devices every day the demand for support of various applications and services are on the rise. This thesis will explore the leading application development tools and technologies for small mobile devices WAP (Wireless Application Protocol), J2ME (Java 2 Platform, Micro Edition) and some others. This thesis will also take a brief look into cellular network technology termed 3G, in terms of its usefulness for applications developed using the aforementioned technologies. The thesis includes the development of a J2ME application using a wireless device emulator.

Investigator: Bc. Iveta Pfeilerová Supervisor: prof. PhDr. Beáta Krahulcová CSc Modern technology in the lives of seniors The thesis titled "Modern technology in the lives of seniors" is focused on a target group of seniors living in a retirement home and their abilities and potential utilization of modern technologies such as cell phone, computer and credit card. The main objective of this thesis was to investigate the relationship that the seniors have to the modern technologies, such as cell phones, computers and credit cards. The thesis and the research was approached with the aspect that these are the seniors who live in a retirement home. In recent years the issue of quality of life of seniors is becoming increasingly hot topic and work with a cell phone, a computer and the Internet can very significantly affect the lives of seniors. The goal was to determine if these visions are reflected in the lives of seniors in housing facilities and if it is possible that the respondents are interested in these technologies. The research was conducted in both theoretical and practical framework. The theoretical part deals with the demographic changes in society, with the aging population and with the old age itself. Further described is the general information lireracy, information needs of seniors and...

Um estudo sobre as principais causas de quedas de chamadas em célula de rede móvel GSM é realizado por meio da análise estatística do tráfego. O objetivo é minimizar o efeito dessas causas, por meio da alteração de parâmetros de cobertura, como controle dinâmico de potência, borda de cobertura entre células e definição correta de células vizinhas. Para uma operadora celular reduzir a taxa de queda de chamadas (TQC), por intermédio da otimização de parâmetros de cobertura, alterados via comandos remotos, elimina os custos com alterações físicas, como altura das antenas e instalações de novas estações rádio base. Entretanto, alterações de parâmetros devem ser cuidadosamente realizadas, pois podem degradar outros indicadores e acarretar redução da área de cobertura e do tráfego. As duas principais causas da TQC são as quedas repentinas, ocasionadas por falha nos equipamentos envolvidos, ou comportamento dos assinantes e falha na execução do handover e as quedas devido ao nível baixo de sinal na interface aérea. Neste trabalho, com base em dados estatísticos do tráfego na rede GSM, foi escolhida uma célula operando em 900 MHz que apresentava alta TQC. Ajustando os parâmetros de cobertura, a TQC mensal passou de 8,6% para 1,6% e não houve degradação nos demais indicadores de desempenho. / A study about the main causes of dropped calls in mobile network cell GSM is made by means of statistical traffic analysis. The aim is to minimize the effect of these causes through coverage parameters changes, such as dynamical potency control, coverage border between cells, correct definition of neighboring cells. The reduction of dropped call rate by means of optimization of coverage parameters, changed via remote commands, eliminates costs with physical changes, such as the height of the antennas and installation of new radio base station. Parameter changes, however, must be carefully made because they can degrade other indicators and bring coverage area and traffic reduction. The two main causes of dropped call are sudden loss of connection, due to failure in the equipment used, behavior of subscribers and the failure in handover and drops due to the low signal strength in the air interface. In this study, based on statistical data of GSM traffic, a cell operating in 900 MHz that presented high dropped call rate was chosen. Adjusting the coverage parameters, the monthly dropped call rate went from 8.6% to 1.6% and there wasn\'t any degradation of any other performance indicators.

Made available in DSpace on 2016-03-15T19:43:48Z (GMT). No. of bitstreams: 1 Carlos Eduardo Santos da Silva.pdf: 1973065 bytes, checksum: 3aecfaae737c8a04c02284e576de12e2 (MD5) Previous issue date: 2010-03-02 / With the objective of better understanding the cell phone as a device for cinematographic contents, or simply cine mobile, and in an attempt to get a glimpse of future possibilities for this new medium, this essay compares it with the origins of cinema, the very first actual steps of the illusion of movement, and more specifically with the Mutoscope. And this comparison is not limited to these two technological devices that are representative of two distinct historical periods. The products, a sequence of photograms in the mutoscope s case, and movies in the cell phone s case, and their contours, as well as the socio-cultural background of both ages, shall also be compared, in an attempt to find parallels and divergences between these two devices for moving pictures. In order to help understanding the scope of such possible parallels and divergences, as well as to shed light on the path of possibilities forcinema and mobile telephony, two experts were interviewed, each from a distinct area of expertise (one is a filmmaker, the other is a businessman in the telephony industry). Ultimately, the new questions that are asked are more important than the questions that are answered, for it is the former ones that will further fuel the debate. / Com o objetivo de entender melhor o telefone celular enquanto device de conteúdo cinematográfico, ou simplesmente cine mobile, na tentativa de vislumbrar possibilidades de futuro para este novo meio, esta dissertação compara-o com as origens do cinema, com os primeiros passos efetivos na ilusão do movimento, mais especificamente com o Mutoscópio. Essa comparação não se limita aos dois aparatos tecnológicos representantes desses dois períodos históricos tão distintos. Os produtos, sequência de fotogramas, no caso do mutoscópio, e filmes, no caso dos celulares, e seus contornos, os cenários socioculturais das duas épocas também serão confrontados numa tentativa de se encontrar paralelos e divergências entre esses dois devices de imagem em movimento. Para ajudar na compreensão da dimensão desses possíveis paralelos e divergências, bem como para iluminar o caminho de possibilidades envolvendo o cinema e o celular. Foram entrevistados dois especialistas, cada um em uma área distinta do conhecimento (uma cineasta e um empresário do setor de telefonia). No final, mais importante do que a perguntas respondidas são as novas perguntas que apareceram e que retroalimentarão a discussão.

Made available in DSpace on 2016-04-29T14:23:53Z (GMT). No. of bitstreams: 1 Ana Carolina Rocha Vaz.pdf: 691245 bytes, checksum: 0fd6901a116520cf58e82d6d007d39d3 (MD5) Previous issue date: 2010-03-19 / The aim of this project is to identify and analyze the impacts of mobile telephone use in society. It was observed that use of this device can strengthen relationships through the exchange of information between users by means of photos, videos, text messages and phone calls. The mobile phone has proven to be a key element in ubiquitous computing and what differentiates it from other mobile devices is the fact that it can combine a number of features in one super-portable piece of equipment. Mobile phones are an efficient tool for coordinating activities. The possibility of rescheduling commitments in real-time, during breaks between one activity and another, can transform the experience of time according to researchers. The addition of localization systems to this device allowed new methods of appropriating physical space, especially in urban centers. The consequences of being available any time, any place, were also discussed. There are two movements going in opposite direction: although we have our entire social network available, at the same time, we become more vulnerable to those who wish to find us. This study is the result of reading the work of authors who analyzed the social changes occurring due to the advances in the development of smart technologies such as Pierre Levy and Manuel Castells. The issue of the impact caused by the use of mobile phones was discussed based on the research by Lucia Santaella, André Lemos, Adriana Souza e Silva, Richard Ling and Howard Rheingold / Este trabalho tem por objetivo apontar e analisar os impactos do uso do telefone celular na vida em sociedade. Observou-se que o uso desse aparelho pode fortalecer relacionamentos através da troca de informações entre os usuários por meio de fotos, vídeos, mensagens de texto e chamadas de voz. O celular mostrou ser o elemento central da computação ubíqua e o que o diferencia dos outros dispositivos móveis é o fato de poder reunir uma série de recursos dentro de um equipamento superportátil. O telefone móvel é uma ferramenta eficiente para a coordenação de atividades e a possibilidade de reagendamento de compromissos em tempo real, nos intervalos entre uma atividade e outra, pode transformar a experiência do tempo, segundo estudiosos da área. A inserção de sistemas de localização nesse dispositivo permitiu novas formas de apropriação do espaço físico, sobretudo nos centros urbanos. As conseqüências de se estar acessível o tempo todo, de qualquer lugar, também foram discutidas. Há dois movimentos ocorrendo em sentidos opostos: ao mesmo tempo em que temos ao nosso alcance nossa rede de contatos, também ficamos vulneráveis para quem quiser nos encontrar. Essa pesquisa é resultado da leitura do trabalho de autores que analisam as mudanças sociais que ocorreram com o avanço no desenvolvimento das tecnologias da inteligência, como Pierre Levy e Manuel Castells. A questão do impacto do uso do telefone celular foi discutida a partir de pesquisas de Lucia Santaella, André Lemos, Adriana Souza e Silva, Richard Ling e Howard Rheingold

<p>Studies of modern communication media such as Cell Phones and so called Instant Messengers are popular today. This study focused on these modern techniques, focused on parents as a target group and on what is important for them in everyday communication.</p><p>By exploratory using three focus groups it became clear that the children, and the link to them was the absolute most important thing for the parents. It became clear that this link to a great extent today exists through the mobile phone.</p><p>In a following study a Mobile Instant Messenger called My Friends was introduced. It was used by two families during two weeks to see how it would change the communication within the family. The focus was to see how problems with availability were handled, it turned out that:</p><p>My friends had a more obvious way of indicating availability than the Cell Phone had. It was also consulted before making contact through other media.</p><p>Emphasis was also put to find out what kind of communication the different media; phone call (Cell Phone), texting and Instant Messenger supports. It showed that three variables seemed to be important when choosing media:</p><p>• the haste of the business</p><p>• the goal of the business</p><p>• the need for precision</p><p>The bigger knowledge two people had of each other the more the latter was affected but the first two were unaffected.</p> / <p>Studier av moderna kommunikationsmedia som mobiltelefonen och så kallade Instant Messengers är populära idag. Denna studie fokuserade på dessa moderna tekniker, och koncentrerade sig på målgruppen föräldrar, och vad som är viktigt för dem i deras vardagskommunikation.</p><p>Genom att först i explorativt syfte använda tre fokusgrupper framkom det att barnen, och länken till dem, var det absolut viktigaste för föräldrarna. Det framgår i studien att länken till barnen idag till stor del finns genom mobiltelefonen.</p><p>I en andra studie introducerades en mobil Instant Messenger kallad My Friends. Denna användes av två familjer under två veckors tid för att se hur den rådande kommunikationen inom familjen förändrades.</p><p>Här fokuserades det på hur problem med tillgänglighet löstes, och det visade sig att:</p><p>My Friends hade ett tydligare sätt att visa tillgänglighet än mobiltelefonen, och den konsulterades ibland även när den faktiska kommunikationen skedde genom andra media.</p><p>Stor emfas lades också på att utröna vilken typ av kommunikation de olika medierna mobiltelefoni, SMS och Instant Messenger stödjer. Det visade sig att tre variabler verkar vara viktiga när val av kommunikationsmedia görs:</p><p>• ärendets brådska</p><p>• ärendets mål</p><p>• behov av exakthet</p><p>Ju större kännedom två personer hade om varandra desto mer påverkades den senare medan de två föregående förblev oförändrade.</p>

<p>Syftet med uppsatsen är att bidra till att öka kunskapen om hur tekniska hjälpmedel kan användas för att underlätta vardagen för vuxna människor med ADHD.  För att åstadkomma detta görs en genomgång av vilka problem som kan föreligga vid ADHD och vilka strukturer och aktörer som finns i samhället för att erbjuda hjälp och stöd som vuxna med ADHD kan ha behov av. Därefter betraktas vilka strategier och metoder som kan vara användbara för att kompensera för de problem ADHD kan innebära och hur teknik, såväl specialtillverkade hjälpmedel som vanliga produkter, kan användas för att kompensera. En översikt görs av hur teknik kan utformas för att bli användbar, såväl generellt som mer specifikt rörande utformning av hjälpmedel. Detta åskådliggörs genom exempel från några svenska hjälpmedelsprojekt följt av en probleminventering där ett antal studiebesök och intervjuer har tjänat som en bakgrund för förståelse av den stora mängd strukturer, aktörer och hjälpmedel som är möjliga men emellanåt svårtillgängliga vägar till hjälp för vuxna med ADHD.</p><p> </p><p>De som i slutänden kan avgöra vilken nytta ett hjälpmedel innebär är brukarna själva. Deras upplevelser och erfarenheter är en ovärderlig källa till kunskap. Under arbetets gång har frågeställningen preciserats till att lyda: <em>"Hur kan vanliga mobiltelefoner användas som hjälpmedel för att underlätta vardagen för vuxna med ADHD?"</em>.<em> </em>För att besvara denna fråga har semistrukturerade riktade intervjuer genomförts med fyra kvinnor med ADHD som använder mobiltelefonen som hjälpmedel i sin vardag. Intervjuerna har transkriberats och kategoriserats för att identifiera hur mobiltelefoner används, vad som fungerar bra och mindre bra och vad kan göra att mobiltelefonen upplevs som ett fungerande hjälpmedel.</p><p> </p><p>Resultaten från bearbetning och analys av intervjuerna sammanställs i kapitlet sammanfattande analys i avsnitt med användbara funktioner, användbara egenskaper och perspektiv på stödbehov och hjälparroll. I diskussionskapitlet föreslås sedan vidare användning av resultaten i avsnitten teoretiska implikationer och praktiska implikationer. Min förhoppning är att dessa avsnitt tillsammans med de listor och tumregler som presenterats i den teoretiska referensramen skall kunna vara användbara för att identifiera behov och möjliga lösningar som kan vara värdefulla att pröva i det enskilda fallet.</p><p> </p><p>En person kan behöva stöd för att ta till vara de möjligheter mobiltelefonen erbjuder som hjälpmedel. Hjälpen kan behövas i något eller alla steg från problemidentifiering och införskaffande till införande, fortlöpande uppföljning och utvärdering av hjälpmedelsanvändningen. Stödet kan behöva vara av så väl strukturell och habiliterande art som av teknisk natur för att hjälpmedelsanvändningen skall bli så framgångsrik som är möjligt. Siktet bör vara mot vad som kan innebära kvalitet, mervärde och avlastning för individen i dennes liv, inte vad som är ADHD-symptom och hur dessa skall kompenseras.</p><p> </p><p>Vuxna med ADHD är en mycket heterogen grupp och de resultat som presenteras i uppsatsen är att betrakta som en utgångspunkt för vidare funderingar och prövning snarare än som färdiga lösningar som passar alla med ADHD.</p><p> </p>

<p>Nowadays, GPS Mobile has already become important part of our life. GPS is widely used for citizen and military. For military, they could use GPS to navigate the missile or space flight. For citizen, people use GPS, especially GPS Mobile, to navigate car. GPS also helps people to find their way to home. GPS are widely use on, police, company manage system, agriculture and so on. GPS Mobile is the most familiar device for all of us to use. To combine use GPS Mobile and Google Map, people can get their currently location and shortcut to their destination. Also, we can get information from the Google map, like shopping place, bus station and so on. The main purpose of our project is to help people reach this aim. By using our software, you can find your location on the Google map. When you travel abroad, you can have your own language map on the GPS mobile, easily and quickly. That’s really convenience. The most wonderful part, you can play game with your friend by using our software. What you need to do, it is just send a message to anyone you care about and then you can get their location and show it on the map. So, even it is a far distance between you and your friend. You can have fun together. That is our software Findyourfriendlocation.</p>

Relay-assisted cooperative communications are promising solutions for error-performance improvement and cell coverage extension. In this thesis, we propose several efficient cooperative relay communication schemes. First, an efficient space-time coded cooperative relay communications scheme that employs linear precoding and transmission-pattern selection is proposed. This is built upon an existing block linear precoding technique for conventional multiple-input multiple-output systems in order to improve the diversity performance of a multihop relay network. Second, we consider several multiuser cooperative relay communication schemes employing layered modulations, such as hierarchical modulation and superposition coding. Conventional cooperative relay communication is effective in mitigating fading effects. However, additional resources, such as time slots or frequency bands are required for the relay, which reduce the overall throughput. Reduction of throughput will become more severe as the number of users increases. In order to overcome this limitation, multiuser cooperative relaying schemes that employ hierarchical modulation and superposition coding are proposed. These schemes exploit the superimposed message for users in the network and allow the system to transmit two or more independent data streams simultaneously. The proposed schemes do not require additional resources than the conventional schemes, while improving the error performance by flexibly controlling the power division coefficient of superposition coding or the distance parameter of hierarchical modulation. / Graduation date: 2012 / Access restricted to the OSU Community at author's request from Sept. 28, 2011 - Sept. 28, 2012

The aesthetic aspect of a functional product is growing to be an important reason for the consumers choice to buy the product. Despite this importance, aesthetics has not generally been incorporated into engineering design which makes much sense of functional and ergonomic designs. The study presented in this thesis aims to remedy this observed gap. The study focuses on the integration of aesthetic attributes with functional attributes of a product and on the quantification of the aesthetic principle from fine arts into design variables of the product. In particular, two hypotheses underlie this study: (1) design variables can be classified in terms of their relevance to functional, ergonomic, and aesthetic attributes, and (2) a particular aesthetic principle, namely visual balance, helps to achieve an improved aesthetic product.<p>The cell phone is used to ground this study. A statistic experiment using the cell phone product positively tests the first hypothesis, resulting in two design variable which are only related to the aesthetic attribute of the cell phone product. The study of the visual balance principle results in a more general formula which relates design variables to visual balance with consideration of both geometry and color of the cell phone product. Finally, another statistic experiment is designed, which positively tests the second hypothesis.<p>This study concludes: (1) the effective integration of aesthetics with function and ergonomics requires an analysis and classification of design variables, and (2) there is a potential to quantify all aesthetic principles from fine arts into design variables.