181 research outputs found

    An analysis of secure MANET routing features to maintain confidentiality and integrity in IoT routing

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    The Internet of Things (IoT) is fast becoming a global phenomenon and many issues are arising such as standardization, deployment of IPv6, sensors’ energy requirements and security among others. However, without a secure network routing system IoT nodes will be exposed to malicious activities on the network, data compromises, privacy invasion and even acts of terrorism could be perpetrated via the teeming billions of IoT nodes. Various MANETs secure routing protocols have been proposed by researchers which could be utilized in the development of secure routing protocols for the Internet of things, thus the study of these secure MANET routing protocols will give a direction for the development and incorporation of secure routing in the Internet of Things. This paper surveys secure routing protocols in MANETs while proposing some secure MANET routing features for enshrining confidentiality and integrity in IoT routing. This paper also discusses research trends and future directions in the area of security of IoT networks

    Augmented Reality Browser for Android Smartphones

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    Master's thesis in Computer scienceAugmented Reality capabilities complement the reality captured by the sensors (human’s senses or technological devices) by adding virtual elements that improve the experience with the real world. The purpose of this project is to develop an application for android smartphones with Augmented Reality (AR) characteristics. Principal characteristic includes an AR view location-based, by using the GPS, camera, and the sensors such as accelerometer, magnetic field, and gyroscope. In addition, the integration of different open data sources that provide relevant information of points of interest (POI's) like touristic places, natural locations, and local business. Based on the searching filters and coordinates of current position. For a better understanding, the mathematical foundation will be explained (three axes space x, y and z) for calculate positioning of markers that will be projected in the augmented reality view, by processing and filtering the data provided by the sensors, as well, an explanation of the libraries used to develop the different components of the application. After this, a revision to the accuracy of sensor methods for capture the localization and motion changes, by using low/high pass filters in the signals and fusion of sensed data, to cancel noise and drift, and get more accurate orientation vectors. The results of this project are presented in form of an application with AR capabilities, such that it can be used for smart and interactive browsing, and to understand the basis of AR concept applied in a real use case. Further research, in this project is to present additional helps in the dashboard by using image recognition, for interact with the objects around, and contextualized searching based on filtering history and user preferences

    Organizational Knowledge Management Framework: The COMFENALCO Case

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    Modern organizations generate a great amount of information that stays dispersed throughout the different operating units. This makes it difficult for management to identify useful relationships among the disparate pieces of information. In an attempt to address that issue organizations implement document management systems that only resolve half of the problem: the half that deals with structuring and organizing the information linked to projects and processes carried out in the organization so that it is available and can be consulted. However, that solution does not address the issue of capturing all the information associated with the experience, tacit and explicit, associated with the processes and the people who participated in those activities and the information thus produced. The goal is that in the future users in the organization could query the knowledge management system and find out the history of the projects and processes carried out, the relationship between the different parts of the process, the role and responsibilities of the different participants and in general the lessons learned. With that in mind this paper presents a framework which serves as a guide for successful implementation of an organizational knowledge management system based on a case study of a large regional public organization in the state of Bolívar, Colombia. Note: This paper could also be considered by the KM & IS track. I´ll leave it up to the programme committee

    Evolution of Broadband Communication Networks: Architecture and Applications

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    With the rapid increase in users’ demand for flexibility and scalability of communication services, broadband communication networks are facing an ongoing challenge of providing various broadband services using a single communication architecture. This leads to the evolution of a challenging field of multiservice broadband network architectures. This chapter discusses the basic concepts associated with broadband communication network architectures with emphasis on provision of multiservice, and it also focuses on the evolution of broadband communication networks from the traditional architecture to the incorporation of virtualization services, that is, cloud computing. Another important aspect, which relates to the multiservice broadband network, is the “applications” which, as this chapter highlights, are a key-driving factor for the evolution of broadband communication networks. Moreover, this chapter also includes a discussion on New Zealand’s government initiatives to provide improved network coverage within the country

    A Quality of Service Framework for Internet Share Trading

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    The recent Quality of Service (QoS) architecture proposed by the Internet Engineering Task Force (IETF) enables a set of new network services providing possible solutions to improve the quality of the Internet-based services. The interest of this research is to find a customizable QoS network solution for the Internet based share trading business by deploying these QoS architectures in order to address the quality issues in the Internet Share Trading Business. The construction of the QoS theoretical framework begins with the identification of the Internet service capabilities required by the Internet share trading business through a case study. The appropriate QoS architectural design is selected through matching the existing QoS architectures with the identified service capabilities. The QoS technological strategies and QoS capabilities are thus derived from the selected QoS architectural design. Additionally, the effectiveness of the proposed QoS architectural design is evaluated against the current implementation by using computer simulation

    Tailoring the Cyber Security Framework: How to Overcome the Complexities of Secure Live Virtual Machine Migration in Cloud Computing

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    This paper proposes a novel secure live virtual machine migration framework by using a virtual trusted platform module instance to improve the integrity of the migration process from one virtual machine to another on the same platform. The proposed framework, called Kororā, is designed and developed on a public infrastructure-as-a-service cloud-computing environment and runs concurrently on the same hardware components (Input/Output, Central Processing Unit, Memory) and the same hypervisor (Xen); however, a combination of parameters needs to be evaluated before implementing Kororā. The implementation of Kororā is not practically feasible in traditional distributed computing environments. It requires fixed resources with high-performance capabilities, connected through a high-speed, reliable network. The following research objectives were determined to identify the integrity features of live virtual machine migration in the cloud system: To understand the security issues associated with cloud computing, virtual trusted platform modules, virtualization, live virtual machine migration, and hypervisors; To identify the requirements for the proposed framework, including those related to live VM migration among different hypervisors; To design and validate the model, processes, and architectural features of the proposed framework; To propose and implement an end-to-end security architectural blueprint for cloud environments, providing an integrated view of protection mechanisms, and then to validate the proposed framework to improve the integrity of live VM migration. This is followed by a comprehensive review of the evaluation system architecture and the proposed framework state machine. The overarching aim of this paper, therefore, is to present a detailed analysis of the cloud computing security problem, from the perspective of cloud architectures and the cloud service delivery models. Based on this analysis, this study derives a detailed specification of the cloud live virtual machine migration integrity problem and key features that should be covered by the proposed framewor

    A Policy-Based Network Management Approach for Greening the Cloud Infrastructure

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    Cloud computing technology is gaining great popularity as a technological enabler for different types of organisations. It offers a great deal of benefits with respect to its pay-as-you-go elasticity and capability to scale. Due to the increasing demand for cloud-based solutions, many challenges have appeared and some of them are constraints to what the technology can potentially offer. Energy efficiency is considered one of the main challenges for cloud computing technologies. This research aims to investigate the power consumption issues in current cloud computing implementations. It also proposes a new concept to find out potential trade-off solutions between energy efficiency and performance using a policy-based network management approach

    Responsiveness and agility in collaborative networks

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    This paper investigates the responsiveness of technology and network governance in the case of collaborative networks comprising multiple organizations and identifies factors affecting the structure and the sustainability of collaborative network governance models. More specifically, the study focuses on the effect of network configurations that combine integration and unbundling on the collaborative network’s agility. The inferences draw on the cross case analysis of four case studies, representing collaborative networks situated within different industry segments in one geopolitical location. Primary data were collected through semi-structured interviews with representatives from each collaborative network. The paper has identified effective communication among partners as an essential requirement for the success of any collaborative project. With regards to agility, a proposition may be advanced that for some type of collaborative services, a higher degree of vertical integration is a better approach compared to a higher degree of unbundling. However, the study findings also indicated that unbundling is a good approach in the case of collaborative services where a cloud based deployment and delivery approach is the priority, and the set of collaborators is diverse. Finally, the findings also showed that a participatory, and largely decentralized model of governance, is more effective in achieving responsiveness, in a collaborative network, than a centralized model
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