57,362 research outputs found
CMI Computing: A Cloud, MANET, and Internet of Things Integration for Future Internet
The wireless communication is making it easier for smart devices to communicate with one another in terms of the network of the Internet of Things. Smart devices are automatically linked and built up a network on their own. But there are more obstacles to safe access within the network itself. Mobile devices such as smart home automation access point, smart washing machines, mobile boards, temperature sensors, color-changing smart lighting, smartphones, wearable devices, and smart appliances, etc. are widespread in our daily lives and is becoming valuable tools with wireless communication abilities that are using specific wireless standards that are commonly used with IEEE 802.11 access points. On the realism of the Internet, security has been perceived as a prominent inhibitor of embracing the cloud paradigm. It is resource storage and management that may lay in any since the cloud environment is a distributed architecture, which place of the world, many concerns have been raised over its vulnerabilities, security threats and challenges. The involvement of various parties has widened these concerns based on each party's perspective and objective. The Cloud point of view we mainly discuss the causes of obstacles and challenges related to security, reliability, privacy, and service availability. The wireless communication Security has been raised as one of the most critical issues of cloud computing where resolving such an issue would result in constant growth in the cloud’s use and popularity. Our purpose of this study is to create a framework of mobile ad hoc network mobility model using cloud computing for providing secure communication among smart devices network for the internet of things in 5G heterogeneous networks. Our main contribution links a new methodology for providing secure communication on the internet of smart devices in 5G. Our methodology uses the correct and efficient simulation of the desired study and can be implemented in a framework of the Internet of Things in 5G
IoT system for anytime/anywhere monitoring and control of vehicles’ parameters
This paper presents an IoT (Internet of Things)
system designed to allow the monitoring and control of
parameters of the users’ vehicles, anytime and anywhere in the
world, through the Internet. The system prototype was developed
and tested using an electric vehicle (EV) and the respective sensor
systems. The main components of the proposed IoT system are: a
Bluetooth Low Energy (BLE) intra-vehicular wireless sensor
network (IVWSN); a mobile device that acts both as the vehicle’s
gateway, connecting the IVWSN to the Internet, and as the
vehicle’s human machine interface (HMI); an online
server/database, based on Firebase; a client, which can be either
a mobile device or a personal computer; and a residential
wireless sensor network (WSN). The use of a wireless network to
collect sensor data inside of the vehicle introduces some
advantages when compared with conventional wired networks,
whereas the inclusion of a residential WSNs in the proposed IoT
architecture allows the provision of additional features, such as
automatic control of the EV battery charging process.
Experimental results are provided to assess the performance of
the developed IVWSN and HMI.This work has been supported by COMPETE: POCI-01-0145-
FEDER-007043 and FCT – Fundação para a Ciência e
Tecnologia within the Project Scope: UID/CEC/00319/2013.info:eu-repo/semantics/publishedVersio
Ubiquitous model for wireless sensor networks monitoring
Wireless Sensor Networks (WSNs) belongs to a new technology trend where tiny and resource constrained devices are wirelessly interconnected and are able to interact with the surrounding environment by collecting data, such as temperature and humidity.
Recently, due to the huge growth of mobile devices usage with Internet connection, smartphones are becoming the center of future ubiquitous
wireless networks allowing users to access data network services, anytime and anywhere. According to the Internet of Things vision, interconnecting WSNs with smartphones and the Internet is a big challenge. Then, due to
the heterogeneity of these devices new architectures are required.
This dissertation focuses on the design and construction of a ubiquitous architecture for WSNs monitoring based on Web services, a relational database, and an Android mobile application. This architecture allows
mobile users accessing real-time or historical data in a ubiquitous environment using smartphones. Besides that, a push notification system to alert mobile users when a sensor parameter overcomes a given threshold was created.
The entire solution was evaluated and demonstrated using a laboratory WSN testbed, and is ready for use.As redes de sensores sem fios fazem parte de uma nova tendência
tecnológica na qual pequenos dispositivos com recursos limitados
comunicam entre si, sem fios, e interagem com o ambiente envolvente
recolhendo uma grande diversidade de dados, tais como a temperatura e a
humidade.
Recentemente, devido ao enorme crescimento no uso de dispositivos
móveis com ligação à Internet, os smartphones estão a tornar-se o centro
das futuras redes sem fios ubíquas permitindo aos utilizadores aceder a
dados, a qualquer hora e em qualquer lugar. De acordo com a visão da
Internet of Things, interligar redes de sensores sem fios e smartphones
usando a Internet é um grande desafio e novas arquitecturas são
necessárias devido à heterogeneidade destes dispositivos.
Esta dissertação centra-se na proposta e construção de uma arquitectura
ubíqua para a monitorização de redes de sensores sem fios, baseada em
serviços Web, apoiada numa base de dados relacional e uma aplicação
móvel para o sistema operative Android. Esta arquitectura permite que os
utilizadores móveis acedam a dados em tempo real e também a dados
históricos, num ambiente móvel, usando smartphones. Além disso, foi
desenvolvido um sistema de notificações push que alerta o utilizador
quando um dado parâmetro de um sensor ultrapassa um limiar
pré-definido.
A solução construída foi testada e demonstrada utilizando uma testbed
laboratorial e está pronta para utilização
Security for 5G Mobile Wireless Networks
The advanced features of 5G mobile wireless network systems yield new security requirements and challenges. This paper presents a comprehensive survey on security of 5G wireless network systems compared to the traditional cellular networks. The paper starts with a review on 5G wireless networks particularities as well as on the new requirements and motivations of 5G wireless security. The potential attacks and security services with the consideration of new service requirements and new use cases in 5G wireless networks are then summarized. The recent development and the existing schemes for the 5G wireless security are presented based on the corresponding security services including authentication, availability, data confidentiality, key management and privacy. The paper further discusses the new security features involving different technologies applied to 5G such as heterogeneous networks, device-to-device communications, massive multiple-input multiple-output, software defined networks and Internet of Things. Motivated by these security research and development activities, we propose a new 5G wireless security architecture, based on which the analysis of identity management and flexible authentication is provided. As a case study, we explore a handover procedure as well as a signaling load scheme to show the advantage of the proposed security architecture. The challenges and future directions of 5G wireless security are finally summarized
Development of an IoT system with smart charging current control for electric vehicles
This paper presents the development and test of an Internet of Things (IoT) system for monitoring and control of electric vehicles. The IoT architecture, which was developed using the Firebase platform, allows the synchronization of the vehicles' data to the online server, as well as the access to the data outside of the vehicle, though the Internet. The smart charging system proposed in this paper allows the control of the electric vehicle's battery charging current in real time, based on the demand at the residence (home current), which is measured using a residential wireless sensor network (WSN). An Android mobile app was developed to access the vehicle's data. This app communicates with the wireless sensor nodes of an intra-vehicular wireless sensor network (IVWSN), which was developed using the Bluetooth Low Energy (RLE) protocol. A real time notification system was also implemented to alert users about certain events, such as low battery and full battery charge. The main features of the proposed IoT system are validated through experimental results.This work is supported by FCT with the reference project UID/EEA/04436/2013, COMPETE 2020 with the code POCI 01-0145-FEDER-006941
A NEMO-HWSN solution to support 6LoWPAN network mobility in hospital wireless sensor network
IPv6 Low-power Personal Area Networks (6LoWPANs) have recently found renewed interest because of the emergence of Internet of Things (IoT). Mobility support in 6LoWPANs for large-scale IP-based sensor technology in future IoT is still in its infancy. The hospital wireless network is one important 6LoWPAN application of the IoT, it keeps continuous monitoring of vital signs of moveing patients. Proper mobility management is needed to maintain connectivity between patient nodes and the hospital network. In this paper, first we survey IPv6 mobility protocols and propose a solution for a hospital architecture based on 6LoWPAN technology. Moreover, we discuss an important metric like signaling overload to optimize the power consumption and how it can be optimized through the mobility management. This metric is more effective on the mobile router as a coordinator in network mobility since a mobile router normally constitutes a bottleneck in such a system. Finally, we present our initial results on a reduction of the mobility signaling cost and the tunneling traffic on the mobile PAN
- …