Made available in DSpace on 2015-03-05T18:25:55Z (GMT). No. of bitstreams: 0 Previous issue date: 31 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / As tecnologias móveis de comunicação aliadas à convergência de mídias têm promovido novas formas de fazer e consumir informação. O jornalismo 3G enquanto último grande avanço, em termos tecnológicos, na produção de conteúdos, diz respeito à utilização das redes de telefonia móvel de terceira geração associada a ferramentas móveis multimidiáticas que vão de simples telefones celulares até aparelhos dos mais sofisticados. A proposta desta pesquisa, no esforço para colaborar com a produção científica sobre jornalismo e novas tecnologias, evidencia-se em um estudo que contempla o jornalismo móvel, em especial a prática do jornalismo 3G, como nova modalidade emergente de produção jornalística. Com a hibridização destas tecnologias e sua capacidade multifuncional, o jornalismo 3G emerge ao potencializar uma estrutura convergente, já estabelecida com o jornalismo online. Em outras palavras, esta prática soma ao ambiente redacional multimidiático a possibilidade de o desterritorializar. Isto significa uma verdadeira

[pt] Impulsionadas pelo crescimento do mercado corporativo e pela prestação de serviços para grandes clientes, as operadoras de serviços de telecomunicação estão buscando processos automatizados e redução de custo no desenvolvimento de novos projetos de redes de telecomunicações. Nesse cenário, dois modelos de Programação Inteira são apresentados buscando uma minimização de custos. O primeiro para o problema de planejamento de novas redes. E segundo para o problema de configuração de trails nas redes SDH. Uma introdução sobre meios de transmissão, redes de telecomunicações, topologias mais utilizadas e sistemas de proteção são apresentados. Por fim, em ambos problemas, são apresentados estudos comparativos com situações reais, com o intuito de validar os modelos. / [en] Stimulated by the growth of the corporate market and by the services dedicated to big customers, providers are searching for, even more nowadays, automated process and cost reduction on the development of new telecommunications networks projects. In that setting, two models of Integer Programming will be presented, seeking a minimization of costs. At first, for the problem of planning of new networks, and second for the problem of configuration of trails in the SDH networks. Beyond that, an introduction about transmission lines, networks of communication, topology more utilized and systems of protection will be presented. In both problems, comparing real situations, with the purpose of validate the models.

Implementeringen av tredje generationens mobila nät (3G) har lett till att nya användningsområden skapats inom mobila tjänster. Bandbreddens ökade kapacitet gör det nu möjligt att skicka betydligt större mängder information än i tidigare mobila nät. Detta har även medfört att nya tjänster skapats för 3G-mobiltelefoner. Ett område under utveckling är mobil turistinformation. Mobila Guiden är en mobil turistapplikation som TelecomCity i Karlskrona tagit fram. Det är en guide över världsarvet i staden som presenteras på en 3G-mobitelefon. Användarna får en karta över Karlskrona centrum med olika besökspunkter som innehåller information i form av text, bilder och ljud. Det finns dock vissa problem när det gäller mobiltelefoner. Den förhållandevis lilla skärm som de har gör informationspresentationen komplicerad. Det är svårt att designa program som tillfredsställer användarna. Inom databranschen har Human Computer Interaction och andra områden inom gränssnittsdesign studerats men när det gäller de betydligt mindre skärmar som en mobiltelefon har så är forskningen inte lika långt framskriden Syftet med detta arbete är att utifrån ett användarperspektiv analysera och identifiera hur en mobil applikation för 3G-nätet som presenterar turistinformation bör designas för att intressera och tilltala användaren. Fokus ligger på att applikationer av denna art i framtiden skall tilltala ett brett användarkollektiv. Resultatet av vårt arbete skall ge normativ kunskap och ses som ett vetenskapligt bidrag i utvecklingen av framtidens informationspresentation i mobila nät. Studien påbörjades med en genomgång av befintlig litteratur. Sedan genomfördes en fallstudie med kvalitativa intervjuer för projektet Mobila Guiden i Karlskrona samt en fokus-gruppsdiskussion. Vi använde sedan en avslutande surveyundersökning för att få kvantitativa åsikter om gränssnittet i applikationen. Utfallen från intervjuer, fokusgrupp och surveyundersökningen analyserades sedan i förhållande till utvald teori. En mobil turistapplikation måste presentera ett brett informationsutbud som exempelvis en karta med sevärdheter, mat, boende och evenemang för att tillfredsställa användarna. Användbarheten bör vara av sådan art att det skapas en dialog mellan applikation och användare. Användaren måste även få feedback och information om hur programmet används. Färgvalen bör också noga beaktas då tydlighet är ett måste på en liten skärm. Individuella inställningar för bildspel, textstorlek och ljud bör finnas tillgängliga. För att användarna ska vara nöjda med applikationen bör också helhetskvalitén runt tjänsten vara tillfredsställande. / The implementation of the third generation of mobile networks (3G) has led to a creation of new areas of use within mobile services. Increased capacity of the bandwidth has made it possible to send a considerable amount more data than in the predecessors of 3G. It has also led to new services within 3G. One area which is under development is mobile tourism information. Mobila Guiden is a mobile tourismapplication which TelecomCity, Karlskrona, has developed. It is a guide over the world heritage in the city which is presented on a 3G mobile phone. The user is presented with a map over Karlskrona City on a mobile phone with different points of interest. These points include information in the form of text, pictures and sound about the object. Certain negative aspects regarding mobile phones surface under the discussion. The screens on mobile phones are relatively small which makes information presentation complicated. It is hard to design the user interface for applications so that the users becomes satisfied. Within the computer industry, Human Computer Interaction and other areas concerning user interface has been studied, but when it comes to the small screens of mobile phones the research is not that widespread. The aim of this report is that from a user perspective, analyze and identify how a mobile application for the 3G-network that presents tourism information should be designed to satisfy user needs. We focus on that applications of this kind in the future should appeal to a broad customer base. The result of this report will give normative knowledge and be regarded as an academic contribution in the future development of information presentation in mobile networks. Our investigation began with a study regarding existing literature. Thereafter a case study with qualitative interviews relating to Mobila Guiden in Karlskrona took place along with a focus group meeting later on. We finally used a survey to get quantitative data regarding opinions of the user interface of the application. The results of the empirical study were then analyzed in relation to appropriate theories. A mobile tourism application must present a broad range of information to satisfy the users, for example: a map with sights worth seeing, restaurants, hotels and happenings. The usability should consist of the creation of a dialogue between the application and the user. The user must receive feedback and information on how to use the application. The choice of colour should be taken under consideration since the screen size makes it imperative that the user interface is clear and easy to understand. It should also be possible to make individual adjustments regarding the speed of a picture slideshow, font size and sound.

Mobile applications should work regardless of which type of wireless interface is used, and should be able to conceal unstable connections from the user to improve user experience. Therefore, network testing is important when developing mobile applications, but it is a challenge to reproduce network conditions when using real cellular networks since the test engineer has no control over the quality of the cellular network. Existing software tools can restrict bandwidth and add latency to the connection, but these tools do not accurately emulate cellular networks. This thesis proposes a system where it is possible to shape the network traffic for connected devices to mimic the network patterns of a real cellular connection when running on a WiFi connection. The design presented in this thesis is intended for testing mobile applications under diverse 3G connection parameters, such as latency, bandwidth and other characteristics. This thesis was conducted at Spotify, a company that provides a music streaming service which is a frequent user of network data traffic. The 3G emulator was evaluated using the Spotify Android application by measuring the correlation between packet traces from a real 3G connection and the 3G emulator. This correlation was compared to the correlation between packet traces from a real 3G connection and the current network emulator at Spotify. The evaluation shows that the proposed 3G emulator outperforms the current network emulator when performing tests on the Spotify application for Android. By using this emulator, we expect the network testing to become more effective as any 3G condition can be tested with repeatable results.

Value Added Services (VASs) have become one of the major revenue generators in the telecom industry. Most of the telecom subscribers have started using VAS and it has become an important service for the customers. The objective of the project is to evaluate and analyse the need for value added services in India. The report begins with a discussion of existing VAS provided by 2G wide area cellular technologies and how these will change with the introduction of 3G technology. Following this the value chain of VAS is discussed. Next new trends, drivers, and challenges of the VAS are discussed in detail. The impact of content developers and software development on VAS are discussed. Then a method to analyse VAS is discussed, followed by method of analysing the ringback tones with respect to a company is provided followed by the method to analyse the importance of the content providers in the value chain. Then the Mobile commerce VAS is analysed in detail and ringback tone service provided by OnMobile Company is analysed in detail, followed by an analysis of the role of content providers in value chain. A survey on different services provided through VAS is taken among few of the VASs users in India and the results are included with graphs in the report. The thesis analysis results are very important in the modern telecommunication industry as VAS plays a major role in generating huge revenue and currently many industries are focusing on to provide mobile commerce services to its customers. The thesis answers various questions like, what are the different M-commerce services that are provided to the customers in the telecom industry. Why OnMobile Company provides different varieties of ringback tones to the user? Why the role of content providers is very important in the Value chain? The report concludes with conclusions explaining the different insights that are gained from the analysis of the VAS (M-Commerce), Ringback tones provided by OnMobile, role of content providers in the Value chain and the survey results. It is followed by the some suggestions and possible future work concerning Value Added Services in India. / Value Added Services (VASs) har blivit en av de största inkomst generatorerna i telekombranschen. De flesta av Telecom abonnenter har börjat använda VAS och det har blivit en viktigare service för kunderna. Målet med projektet är att utvärdera och analysera behovet av mervärdestjänster VAS i Indien. Rapporten inleds med en diskussion av befintliga VAS från 2G stort mobil teknik område och hur dessa kommer att förändras med införandet av 3G-tekniken. Efter detta kommer värdekedjan för VAS att diskuteras. De nästkommande nya trenderna, drivrutiner och utmaningar inom VAS diskuteras mer i detalj. Effekterna från innehållsutvecklare och mjukvaruutvecklingen inom VAS diskuteras också. Sedan kommer metoden för att analysera VAS att diskuteras, följt av en analys av ringsignaltjänsten med avseende på företag och en metod för att analysera betydelsen av innehållsutvecklare inom värdekedjan. Då mobil handel VAS analyseras i detalj och tillbaka ringningston tillhandahålls av OnMobile företag analyseras i detalj, följt av en analys av den roll som leverantörsrollen av innehåll i värdekedjan. En undersökning om olika tjänster som tillhandahålls via VAS tas bland några av de VASS användare i Indien och resultaten visas i grafer i rapporten. Avhandlingen analysresultaten är mycket viktiga i den moderna telekomindustrin som VAS spelar en viktig roll i att genererar stora inkomster och för närvarande många branscher fokuserar på att tillhandahålla mobil handel tjänster till sina kunder. Avhandlingen besvarar frågor som: Vilka är de olika mobila-handelstjänster som tillhandahålls inom telekomindustrin, varför OnMobile tillhandahåller olika typer av ringsignaltjänster till användaren? och Varför innehållsutvecklare är viktiga inom värdekedjan? Rapporten avslutas med slutsatser som förklarar de olika insikter som erhålls från analysen av VAS (M-Commerce), tillbaka ringningstoner från OnMobile, den roll som leverantörer av innehåll i värdekedjan och enkätresultat. Det följs av några förslag och möjliga framtida arbete om Value Added Services i Indien.

目前全球電信業的發展，將以第三代行動通訊網路（3G）為基礎，有效提供全方位的無線寬頻數據與語音服務。而IP(Internet Protocol)的應用與行動通訊的結合，將會徹底改變大眾未來的生活。在第三代行動通訊網路的發展中，因為基地台的涵蓋範圍愈來愈小（micro/pico cellular），造成使用者在使用行動通訊網路時會產生更頻繁的交遞。如何讓使用者在進行交遞程序時降低交遞失敗率（handoff dropping rate），讓使用者在使用第三代行動網路的服務時，不會因為交遞的發生而造成服務中斷，以達到無接縫的交遞（seamless handoff），並同時降低新呼所堵塞率（new call blocking rate）及滿足各種使用者需求的服務品質，提升資源使用效率。本論文考量以使用者位置（location-base）及基地台特色作為交遞預測的準則。以往，交遞執行與否的決定是以使用者設備接收各基地台訊號強弱、移動速度等資訊作為參考。在此我們利用已發展出之各種定位技術，以使用者位置做為交遞程序準則（location-aware handoff），根據每個基地台在不同地理位置所呈現出的不同訊務特色，提出一個適用於各種環境，在交遞時的資源保留機制。預測使用者的未來走向，以滿足使用者在交遞時QoS的需求，使得在基地台中資源預留達到最小，能有效降低新呼叫堵塞率、交遞失敗率，並提升基地台資源使用率，進而使整個網路效能最佳化，滿足各種服務之QoS需求。為驗證本文所提出的交遞及資源保留演算法對於系統效能的改進，在此設計了一套適用於第三代無線通訊網路的交遞模擬系統。使用者可匯入不同地區的實際電子地圖，系統會依使用者在不同位置所產生之不同的行為模式，如方向、速度等；或因基地台之地理位置及時間的不同，產生不同的使用需求或訊務量等；據此建立各個基地台的使用特性，以符合實際使用狀況，並獲得更精確的模擬結果。末了再套用本文所發展的交遞及資源保留演算法修改模組，以驗證不同交遞演算法及通訊協定的效能。 / The development of mobile communication will base on the 3rd generation communication system (3G), which can provide boardband wireless data communication and voice service. The integration of Internet protocol and mobile communication will totally change our future life. In comparisons with previous mobile communication systems, the coverage of 3G base station is much smaller, which will cause Mobile Host (MH) execute handoff procedure more frequently. Our goal is to reduce handoff dropping rate, new call blocking rate and at the same time satisfy all QoS requests, increase resource utilization supporting seamless handoff. In the past, handoff procedure is executed by assessing signal strength of base stations. Here we consider user location and base station geographical pattern to support a location-aware handoff procedure. We invent a resource reservation scheme according to the traffic characteristics and environment of the base station and predict user location to optimize system performance. To compare the system performance between different schemes, we developed a handoff simulation tool (3GHOSim) suitable for 3G mobile communication system. The system could import electronic map, create different user behavior (direction, speed, etc.), generate different user requirements and traffic loads trying to get more realistic simulation results.

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Thesis maps the situation in the telecommunications market in the Czech Republic, analyzes the major players on the Czech nad world market, and analyzes the possibilities of marketing and presentation of high-tech to customers in user-friendly form.

"A mobile ultrasound system has been developed, which makes ultrasound examinations possible in harsh environments without reliable power sources, such as ambulances, helicopters, war zones, and disaster sites. The goal of this project was to analyze three different wireless communication technologies that could be integrated into the ultrasound system for possible utilization in remote data applications where medical information may be transmitted from the mobile unit to some centralized base station, such as an emergency room or field hospital. By incorporating wireless telecommunication technology into the design, on site medical personnel can be assisted in diagnostic decisions by remote medical experts. The wireless options that have been tested include the IEEE 802.11g standard, mobile broadband cards on a 3G cellular network, and a mobile satellite terminal. Each technology was tested in two phases. In the first phase, a client/server application was developed to measure and record general information about the quality of each link. Four different types of tests were developed to measure channel properties such as data rate, latency, inter-arrival jitter, and packet loss using various signal strengths, packet sizes, network protocols, and traffic loads. In the second phase of testing, the H.264 Scalable Video Codec (SVC) was used to transmit real-time ultrasound video streams over each of the wireless links to observe the image quality as well as the diagnostic value of the received video stream. The information gathered during both testing phases revealed the abilities and limitations of the different wireless technologies. The results from the performance testing will be valuable in the future for those trying to develop network applications for telemedicine procedures over these wireless telecommunication options. Additionally, the testing demonstrated that the system is currently capable of using H.264 SVC compression to transmit VGA quality ultrasound video at 30 frames per second (fps) over 802.11g while QVGA resolution at frame rates between 10 and 15 fps is possible over 3G and satellite networks."

Broadband mobile communication based on both broadband Internet and the third generation mobile communication system (3G) is going to play the role as a major channel for customers to obtain various services. It takes advantages of acquiring services with time saving, and any-time and any-place access in the near future. It is very obvious that eventually all companies offer real-customized broadband mobile services at the right time in the right place with the right price, so-called mobile commerce, due to customers' requirements and technology advancements e.g., data mining, global roaming, GPS, mobile location services, mobile IP and IPV6, etc. Syndication and alliance will be shaped and concreted within and between companies for mobile commerce under the information infrastructure of both 3G and broadband Internet. New business opportunities are emerging considerably. However, companies are facing many more difficult challenges of losing customers easily due to quick and cheap switch from one company to another. Therefore, it is one of the most important topics now for companies to attract customers, satisfy customers, and win their loyalty through appropriate customer relationship management (CRM). In this research, we survey the development ofCRM, its conceptual architecture, function, and advantage to both customers and companies. We study and compare four popular CRM systems - 12, Siebel, NCR, and BroadVision, which are currently available in the global market. And, we examine the current advancements of related information and communication technologies for CRM and figure out new trends of CRM for broadband mobile commerce based on the 3G and broadband Internet. Furthermore, we address the management and marketing strategies ofCRM for the coming challenges in the broadband mobile commerce era.