Cidades ao redor do mundo enfrentam diversos desafios para proporcionar uma boa qualidade de vida aos seus cidadãos. Sistemas de software vêm sendo desenvolvidos com objetivo de melhorar os serviços e otimizar o uso da infraestrutura da cidade. Desenvolver ambientes de experimentação para esses sistemas na escala de grandes cidades ainda é um desafio, devido ao alto custo e problemas de infraestrutura. Por sua vez, a simulação é um mecanismo que vem sendo utilizado na realização de experimentos em diversas áreas do conhecimento. O objetivo deste trabalho é auxiliar na construção de um ambiente de experimentação de larga escala e interativo para plataformas de Cidades Inteligentes através de simulação. Para tanto, desenvolvemos uma arquitetura de software visando permitir a integração de plataformas e simuladores de Cidades Inteligentes. Dois estudos de caso demostraram a viabilidade da solução, integrando o simulador InterSCSimulator e a plataforma InterSCity, envolvendo uma série de melhorias em ambas as ferramentas. Apresentamos detalhes de como implementar a arquitetura proposta, além da execução de experimentos na escala da cidade de São Paulo. Acreditamos que a solução nos levou a resultados satisfatórios, tendo em vista que, foi possível realizar experimentos de larga escala através de simulação por meio da implementação da arquitetura apresentada. Portanto, projetamos uma arquitetura de software que poderá servir de base para integração de plataformas e simuladores de Cidades Inteligentes com o intuito de realizar experimentos de larga escala e interativo, visando principalmente questões de desempenho e escalabilidade. / Cities around the world face a number of challenges to provide a good quality of life for their citizens. Software systems have been developed with the aim of improving services and optimizing the use of the citys infrastructure. Developing experimentation environments for these systems in the large cities scale is still a challenge due to the high cost and infrastructure problems. In turn, the simulation is a mechanism that has been used to enable experiments in several areas of knowledge. The goal of this work is to assist in the development of a large scale and interactive experimentation environment for Smart Cities platforms through simulation. For this, we developed a software architecture to allow the integration of platforms and simulators of Smart Cities. Two case studies demonstrated the feasibility of the solution, integrating the InterSCSimulator simulator and the InterSCity platform, involving a series of improvements in both tools. We present details of how to implement the proposed architecture, as well as the execution of experiments on the scale of the city of São Paulo. We believe that the solution led us to satisfactory results, considering that it was possible to perform large- scale experiments through simulation using the implementation of the presented architecture. Therefore, we have designed a software architecture that can be used as a basis for the integration of Smart Cities platforms and simulators in order to perform large-scale and interactive experiments, primarily focusing on performance and scalability issues.

By the year 2050, about three quarters of the world’s population will live in cities. Most cities are developed by state or federal governments; however, some cities are developed for the purpose of private interests that plan the city. While the concept of private companies planning and sometimes even owning cities is not a new development, there seems to currently be a rise in this trend, with communication corporations such as IBM, Google, Intel, and Cisco now taking advantage of this growing market. Known as “smart” or “wired” cities, this new privatized way of planning communities allows major communication corporations to play an important role in shaping the future of our communities. Google, IBM, and Intel are all playing a role in planning the future of Portland, Oregon. By analyzing documents such as planning ordinances, financial reports, and government transcripts, as well as conducting interviews with city planners and corporate employees, this study found that many of the “smart” city efforts being undertaken by these communication corporations are intimately tied to their efforts to bring the Internet of Things (IoT) to fruition. Ultimately, the main goal of these efforts is to utilize urban communication technologies (UCTs) to gather data about community members by tracking their activities. In this emerging personal data economy, identities are the main commodity being fetishized.

For half a century, urban metabolism has been used to provide insights to support transitions to sustainable urban development (SUD). Internet and Communication Technology (ICT) has recently been recognized as a potential technology enabler to advance this transition. This thesis explored the potential for an ICT-enabled urban metabolism framework aimed at improving resource efficiency in urban areas by supporting decision-making processes. Three research objectives were identified: i) investigation of how the urban metabolism framework, aided by ICT, could be utilized to support decision-making processes; ii) development of an ICT platform that manages real-time, high spatial and temporal resolution urban metabolism data and evaluation of its implementation; and iii) identification of the potential for efficiency improvements through the use of resulting high spatial and temporal resolution urban metabolism data. The work to achieve these objectives was based on literature reviews, single-case study research in Stockholm, software engineering research, and big data analytics of resulting data. The evolved framework, Smart Urban Metabolism (SUM), enabled by the emerging context of smart cities, operates at higher temporal (up to real-time), and spatial (up to household/individual) data resolution. A key finding was that the new framework overcomes some of the barriers identified for the conventional urban metabolism framework. The results confirm that there are hidden urban patterns that may be uncovered by analyzing structured big urban data. Some of those patterns may lead to the identification of appropriate intervention measures for SUD. / <p>QC 20151120</p> / Smart City SRS

The digital world tolerates a high volume of information and interactions. Considering the usage of electronic services by authorities, User Authentication (UA) is crucial. Numerous authentication methods are proposed in the literature; yet, identifying users based on their actual identities with the capability of global usage and respecting privacy is under research. By adopting Blockchain technology in the software industry, the record management systems have satisfied properties such as transparency, accountability, anonymity, and attack resiliency. Moreover, Smartphones are powerful devices capable of hosting a Subscriber Identification Module (SIM) Card that secures the execution of processes involving use of sensitive information. A combination of these technologies is the foundation of a strong UA in cyberspace. In this thesis, we propose the design and prototype of Blockchain-based Global Authentication System (BBGAS) that offers a secure, privacy-preserving, and transparent authentication system based on users' biometrics via Smartphones appropriate for service provider applications.

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A large number of refugees are forced to live in refugee camps which lack in both quality of life and infrastructure. Most of them are located in areas without mobile coverage. By contrast, Smart Cities aim to improve the life of its citizens, mainly helped by ICTs. Therefore, refugee camps can also take advantage of the ICTs to enhance the life of refugees. The present thesis aims to explore the needs and priorities of refugees, analyse the impact of smart city solutions implemented in refugee camps on the lives of refugees, and identify and analyse currently unused smart city solutions that could meet the needs of refugees in refugee camps and enhance the Sustainable Development Goals. The study is carried out through the literature review and interviews with professionals working in NGOs devoted to the refugee issues. The necessity and benefits of ICTs have been analysed and the most promising solutions in the different domains of the refugee camps have been selected and described, including IoT based solutions supported with low power WAN to collect data, and blockchain applications as new protocol for a database. / Ett stort antal flyktingar tvingas bo i flyktingläger som saknar både livskvalitet och infrastruktur. De flesta av dem ligger i områden utan mobil täckning. Däremot syftar Smart Cities till att förbättra medborgarnas liv, främst med hjälp av IKT. Flyktingläger kan därför också dra nytta av IKT för att förbättra flyktingarnas liv. Nuvarande avhandling syftar till att undersöka flyktingarnas behov och prioriteringar, analysera effekten av smarta stadslösningar som genomförs i flyktingläger om flyktingarnas liv och identifiera och analysera nuvarande oanvända smarta stadslösningar som kan tillgodose flyktinglägernas behov och flyktingläger förbättra de hållbara utvecklingsmålen. Studien utförs genom litteraturöversikt och intervjuer med yrkesverksamma inom icke-statliga organisationer som ägnar sig åt flyktingfrågorna. Nödvändigheten och fördelarna med IKT har analyserats och de mest lovande lösningarna på flyktinglägernas olika domäner har blivit utvalda och beskrivna, inklusive IoT-baserade lösningar som stöds med låg effekt WAN för att samla in data och blockchain applikationer som nytt protokoll för en databas .

With the dramatic growth of vehicles around the world, Vehicular Ad-hoc Networks (VANETs) have been proposed as a solution to advance road safety, improve transportation efficiency, and satisfy road users. In the VANET environment, vehicles communicate with each other and with road infrastructure in an ad-hoc manner. This communication may be safety-related or non-safety-related and may often include vehicle information (e.g., location, direction, speed, and control), road conditions, and events. A key component in assessing the veracity of the information is the trustworthiness of the information source. Thus, trust evaluation is one of the main requirements of VANET design. In this work, we investigate performance improvements in the trust evaluation framework of VANETs. First, we propose a risk-based trust evaluation model (RTEAM) to estimate the risk of taking action or refraining from action regarding a reported event (in case of receiving conflicting messages about the event's existence). Some trust metrics such as direct trust, hop-based trust values, proximity to the event, and consequences of acting on a wrong decision are used to estimate the risk of the vehicle’s actions. Vehicles make individual decisions by seeking the action with the lowest risk. Second, we propose a fog-based reputation evaluation model (FREM) to support trust management framework. We promote fog computing as a new paradigm since it can provide several services to users in the edge layer. In our work, Fog supports the decision-making process in the reputation evaluation framework. Fog nodes play a key role in collecting vehicles' reputation records and cooperating with the roadside units (RSUs) to update these records. We propose the use of Digital Trustworthiness Cards (DTC), where the latest reputation evaluation of a vehicle automatically appears on its card. The benefits of the DTC are twofold: 1) the communication load on vehicles is reduced, and 2) historical trust records are established for each vehicle. We also take advantage of fog’s familiarity and greater knowledge of the vehicles that frequently visit its zones; with more intimate knowledge, fog can smartly employ vehicles to perform specific tasks based on their experiences. Further, we implement a strategy for establishing trust based on specific task categories. This permits a nuanced evaluation of the vehicle best suited for the task at hand and has the further benefit of preventing malicious vehicles from being naively trusted based on successful completion of unimportant or non-safety-related tasks. Finally, we expand the role of the fog in the decision-making process when vehicles need to ensure the existence of serious events. We propose a fog-based event validation model (FEVM) to validate the event’s existence through cooperation between vehicles and fog nodes. The vehicles are used as mobile fog nodes, which compute their confidence in events based on the available information. Fog nodes then validate the event after combining vehicles’ confidence values by applying the Extended Dempster-Shafer (EDS) theory of evidence. To test our proposed models, we conduct many experiments to investigate their performance and compare them with other existing models.

Yes / Smart cities employ information and communication technologies to improve: the quality of life for its citizens, the local economy, transport, traffic management, environment, and interaction with government. Due to the relevance of smart cities (also referred using other related terms such as Digital City, Information City, Intelligent City, Knowledge-based City, Ubiquitous City, Wired City) to various stakeholders and the benefits and challenges associated with its implementation, the concept of smart cities has attracted significant attention from researchers within multiple fields, including information systems. This study provides a valuable synthesis of the relevant literature by analysing and discussing the key findings from existing research on issues related to smart cities from an Information Systems perspective. The research analysed and discussed in this study focuses on number of aspects of smart cities: smart mobility, smart living, smart environment, smart citizens, smart government, and smart architecture as well as related technologies and concepts. The discussion also focusses on the alignment of smart cities with the UN sustainable development goals. This comprehensive review offers critical insight to the key underlying research themes within smart cities, highlighting the limitations of current developments and potential future directions.

Yes / The complex and interdependent nature of smart cities raises significant political, technical, and socioeconomic challenges for designers, integrators and organisations involved in administrating these new entities. An increasing number of studies focus on the security, privacy and risks within smart cities, highlighting the threats relating to information security and challenges for smart city infrastructure in the management and processing of personal data. This study analyses many of these challenges, offers a valuable synthesis of the relevant key literature, and develops a smart city interaction framework. The study is organised around a number of key themes within smart cities research: privacy and security of mobile devices and services; smart city infrastructure, power systems, healthcare, frameworks, algorithms and protocols to improve security and privacy, operational threats for smart cities, use and adoption of smart services by citizens, use of blockchain and use of social media. This comprehensive review provides a useful perspective on many of the key issues and offers key direction for future studies. The findings of this study can provide an informative research framework and reference point for academics and practitioners.