This paper provides an overview of the Internet of Things (IoT) with emphasis on enabling technologies, protocols, and application issues. The IoT is enabled by the latest developments in RFID, smart sensors, communication technologies, and Internet protocols. The basic premise is to have smart sensors collaborate directly without human involvement to deliver a new class of applications. The current revolution in Internet, mobile, and machine-to-machine (M2M) technologies can be seen as the first phase of the IoT. In the coming years, the IoT is expected to bridge diverse technologies to enable new applications by connecting physical objects together in support of intelligent decision making. This paper starts by providing a horizontal overview of the IoT. Then, we give an overview of some technical details that pertain to the IoT enabling technologies, protocols, and applications. Compared to other survey papers in the field, our objective is to provide a more thorough summary of the most relevant protocols and application issues to enable researchers and application developers to get up to speed quickly on how the different protocols fit together to deliver desired functionalities without having to go through RFCs and the standards specifications. We also provide an overview of some of the key IoT challenges presented in the recent literature and provide a summary of related research work. Moreover, we explore the relation between the IoT and other emerging technologies including big data analytics and cloud and fog computing. We also present the need for better horizontal integration among IoT services. Finally, we present detailed service use-cases to illustrate how the different protocols presented in the paper fit together to deliver desired IoT services.

Internet of Things: A Survey on Enabling Technologies, Protocols, and Applications

Mobile edge computing (MEC) is an emergent architecture where cloud computing services are extended to the edge of networks leveraging mobile base stations. As a promising edge technology, it can be applied to mobile, wireless, and wireline scenarios, using software and hardware platforms, located at the network edge in the vicinity of end-users. MEC provides seamless integration of multiple application service providers and vendors toward mobile subscribers, enterprises, and other vertical segments. It is an important component in the 5G architecture which supports variety of innovative applications and services where ultralow latency is required. This paper is aimed to present a comprehensive survey of relevant research and technological developments in the area of MEC. It provides the definition of MEC, its advantages, architectures, and application areas; where we in particular highlight related research and future directions. Finally, security and privacy issues and related existing solutions are also discussed.

/pdf/mobile-edge-computing-a-survey-3eu2fzhuxk.pdf

Mobile Edge Computing: A Survey

Intelligent Manufacturing in the Context of Industry 4.0: A Review

There has been significant interest and progress in the field of vehicular ad hoc networks over the last several years. VANETs comprise vehicle-to-vehicle and vehicle-to-infrastructure communications based on wireless local area network technologies. The distinctive set of candidate applications (e.g., collision warning and local traffic information for drivers), resources (licensed spectrum, rechargeable power source), and the environment (e.g., vehicular traffic flow patterns, privacy concerns) make the VANET a unique area of wireless communication. This article gives an overview of the field, providing motivations, challenges, and a snapshot of proposed solutions.

/pdf/a-tutorial-survey-on-vehicular-ad-hoc-networks-1kddlbkcs2.pdf

A tutorial survey on vehicular ad hoc networks

Mobile ad hoc networks (MANETs) represent complex distributed systems that comprise wireless mobile nodes that can freely and dynamically self-organize into arbitrary and temporary, ‘‘ad-hoc’’ network topologies, allowing people and devices to seamlessly internetwork in areas with no pre-existing communication infrastructure, e.g., disaster recovery environments. Ad hoc networking concept is not a new one, having been around in various forms for over 20 years. Traditionally, tactical networks have been the only communication networking application that followed the ad hoc paradigm. Recently, the introduction of new technologies such as the Bluetooth, IEEE 802.11 and Hyperlan are helping enable eventual commercial MANET deployments outside the military domain. These recent evolutions have been generating a renewed and growing interest in the research and development of MANET. This paper attempts to provide a comprehensive overview of this dynamic field. It first explains the important role that mobile ad hoc networks play in the evolution of future wireless technologies. Then, it reviews the latest research activities in these areas, including a summary of MANETs characteristics, capabilities, applications, and design constraints. The paper concludes by presenting a set of challenges and problems requiring further research in the future. � 2003 Elsevier B.V. All rights reserved.

/pdf/mobile-ad-hoc-networking-imperatives-and-challenges-56mord86q0.pdf

Mobile ad hoc networking: imperatives and challenges

This work presents an auxiliary mechanism to aid in the distribution of warning messages for Emergency Alert Systems (EAS). The main objectives of the proposed mechanism are to speed up and broaden the warning messages distribution process to provide to the public faster access to crucial information. EAS are public safety message systems designed to enable authorities to address the population in case of an emergency. This kind of system has been in use for a long time, however traditionally they are composed of radio/TV broadcast messages or sirens spread through endangered regions. This system on the other hand addresses the next generation of EAS systems that will be based on wireless computer networks and satellite technologies. The method proposed here is a complementary way to spread warning messages that not only successfully broadens the EAS reachability but also significantly speeds up the messages distribution process.

Propagation of Public Safety Warning Messages: A Delay Tolerant Network Approach

OpenAirInterface is an experimental open-source real-time hardware and software platform for experimentation in wireless communications and signal processing. With the help of OpenAirInterface, researchers can demonstrate novel ideas quickly and verify them in a realistic environment. Its current implementation provides a full open-source software modem comprising physical and link layer functionalities for cellular and mesh network topologies. The physical (PHY) layer of the platform targets fourth generation wireless networks and thus uses orthogonal frequency division multiple access (OFDMA) together with multiple-input multiple-output (MIMO) techniques. The current hardware supports 5 MHz bandwidth and two transmit/receive antennas. The media access (MAC) layer of the platform supports an abundant two-way signaling for enabling collaboration, scheduling protocols, as well as traffic and channel measurements. In this paper, we focus on the mesh topology and show how to implement a single-frequency mesh network with OpenAirInterface. The key ingredients to enable such a network are a dual-stream MIMO receiver structure and a distributed network synchronization algorithm. We show how to implement these two algorithms in real-time on the OpenAirInterface platform. Further more, we provide results from field trials and compare them to the simulation results.

/pdf/design-and-implementation-of-a-single-frequency-mesh-network-51oj4991k0.pdf

Design and implementation of a single-frequency mesh network using OpenAirInterface

The early Internet of Things (IoT) systems have been infrastructure dependent But these systems are evolving due to the advent of data centric IoT architectures, applications and services that are independent of infrastructure Cloudification, virtualization and softwarization of IoT devices and services are heavily used to design, develop and deploy new End-to-End IoT applications Scalability, extensibility and interoperability challenges are now coming to forefront regarding the new IoT services and platforms This paper proposes to tackle these challenges using microservices in the Cloud We are extending our previously developed DataTweet IoT architecture and services to cover a high degree of heterogeneity, information systems, integration of virtual IoT devices, gateways and micro-granular architectures The paper investigates the new challenges and describes solutions for integrating microservices with more flexible and scalable architectural meta models We present a prototype of the enhanced architecture, its operational steps and a use cases on roadside assistance

Next-Generation, Data Centric and End-to-End IoT Architecture Based on Microservices

The current Internet of Things (IoT) ecosystem consists of non-interoperable products and services. The Web of Things (WoT) advances the IoT by allowing consumers to interact with the IoT ecosystem through the open and standard web technologies. But the Web alone does not solve the interoperability issues. It is widely acknowledged that Semantic Web Technologies hold the potential of achieving data and platform interoperability in both the IoT and WoT landscapes. In this context, the paper attempts to review and analyze the current state of ontology-based software tools for semantic interoperability.

A survey and analysis of ontology-based software tools for semantic interoperability in IoT and WoT landscapes

This work proposes a data driven IoT architecture to mitigate the fragmentation and data silos in consumer IoT ecosystem. IoT data cycle is explored to understand data transformation from generation to processing, storage and dissemination. We have developed a framework called DataTweet focusing on data cycle based IoT services. The DataTweet architecture is presented along with its subsystems, services, requirements and common service functions necessary to implement the services. The main novelty of DataTweet is in creating a ubiquitous consumer data service for transmitting short messages to any computing platforms to generate actionable intelligence that is disseminated to consumers.

Christian Bonnet

Papers

Propagation of Public Safety Warning Messages: A Delay Tolerant Network Approach

Design and implementation of a single-frequency mesh network using OpenAirInterface

Next-Generation, Data Centric and End-to-End IoT Architecture Based on Microservices

A survey and analysis of ontology-based software tools for semantic interoperability in IoT and WoT landscapes

DataTweet: An architecture enabling data-centric IoT services