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

Axial Spondyloarthritis (axSpA) patients with inflamed intestines have higher SpA activity. Diets that modulate microbiota may influence inflammation and SpA activity. Today, data concerning the impact of diet on SpA activity are scarce. SANUT was a single-center, noninterventional, cohort study that assessed dietetic profiles associated with SpA activity in axSpA. Demographic, clinical, SpA-related, quality of life (QoL), fatigue, physical activity, and dietary data were collected. SpA activity was assessed by Ankylosing Spondylitis Disease Activity Score (ASDAS) and by Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). We assessed whether high SpA activity was associated with nutriment consumption. Between 12 February 2018 and 12 February 2020, 278 patients participated. High SpA activity, as measured by ASDAS and BASDAI, was significantly associated with higher body mass index and waist circumference, negative HLA-B27, lower QoL, higher fatigue, and higher digestive-symptom scores. Furthermore, high SpA activity, as measured by BASDAI, was associated with female sex, smoking status, patients who were not actively employed, reduced physical activity, and high intake of ultra-transformed foods, while high SpA activity, as measured by ASDAS, was associated with low intake of omega-3 PUFAs and fiber. Therefore, low intakes of omega-3 PUFAs and fiber, and high intake of ultra-transformed foods, are associated with high SpA activity.

/pdf/diet-and-disease-activity-in-patients-with-axial-1pgv691u.pdf

Diet and Disease Activity in Patients with Axial Spondyloarthritis: SpondyloArthritis and NUTrition Study (SANUT)

Cet article decrit une plate-forme radio logicielle reconfigurable, permettant de realiser ďune maniere souple des traitements en temps reel sur une interface radio de type 3G Cette plate-forme est actuellement utilisee pour implementer des methodes de transmission-reception ainsi que des protocoles, inspires des normes 3G (umts, cdma2000) Une vue ďensemble de ľarchitecture materielle est donnee dans cet article ainsi que des exemples ďimplantations logicielles, aussi bien sur processeurs de traitement du signal (dsp) que sur des processeurs classiaues

/pdf/an-open-software-radio-architecture-supporting-advanced-3g-4nczgeatai.pdf

An open software-radio architecture supporting advanced 3G+ systems

Recent publications in information theory demonstrated that mobility can increase the capacity of wireless ad hoc networks. More precisely, the throughput per source-destination pair can be kept constant as the density of nodes increases. Considering an analytical study as a starting point, in this paper we propose and evaluate a distributed scheduling policy for dense and highly mobile ad hoc networks. This policy takes advantage of mobility in order to reduce the relaying tra c in such a network. Simulation results are provided to show the bene t of mobility on the network throughput and the optimal transmission range is derived from an analytical study.

A Scheduling Policy for Dense and Highly Mobile Ad hoc Networks

Nowadays, the cross-layer design approach, is the most relevant concept in mobile ad-hoc networks. It is obvious that designing this architecture for MANETs could be used for more than one objective such as QoS provisioning, security, and multicast transfer. In this work, we discuss trends and challenges on designing cross-layer communication protocols for mobile wireless networks. Our analysis are based on the comparison of several cross-layer mechanisms that we have introduced to improve application performance under specific scenario characteristics. Indeed, we study the simulation output obtained with and without considering layer interconnections. These results show that the performance of the inter-layer cooperation paradigm depends on the network characteristics and the application constraints. Our remarks lead to a description of a new cross-layer architecture "XAid", that aims to provide a mapping between the set of QoS requirements, network characteristics, and the appropriate basic or cross-layer protocol.

/pdf/crossaid-xaid-towards-a-new-scalable-cross-layer-1i4w172az3.pdf

Crossaid (XAid): towards a new scalable cross-layer architecture for manets

In the UMTS network, the radio link is neither reliable and nor stationary. In order to provide the Quality Of Service (QoS) and to optimize the radio resource consumption, we propose to dynamically adapt the parameters of the Radio Access Network. We first simulate the behavior of the network. Those results let us predict if a set of parameters provides or not the required service. At every Transmission Time Interval, and with respect to the expected channel conditions, we will select among the sets of parameters that provide the service, the one that will optimize the efficiency. We provide tables that indicate the set of parameters to select with respect to the required QoS. We show that in favorable cases, adaptive coding could often increase the efficiency by 10%, or even 40 % in the most favorable case.

Christian Bonnet

Papers

Diet and Disease Activity in Patients with Axial Spondyloarthritis: SpondyloArthritis and NUTrition Study (SANUT)

An open software-radio architecture supporting advanced 3G+ systems

A Scheduling Policy for Dense and Highly Mobile Ad hoc Networks

Crossaid (XAid): towards a new scalable cross-layer architecture for manets

Performance of a link adaptive system in UMTS networks