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.

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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.

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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

Inthis work,westudyfundamental limitation tothe performance oftime-delay estimation schemes ofIR-UWBsignals. We arespecially interested inderiving lowerboundonthemean squareerror(MSE).AsUWB systems areexpected tooperate atlowsignal-to-noise ratio (SNR)(80211.15.4 low-power lowrate standard), theimproved Ziv-Zakai lowerbound(IZZLB)(1) is thenmoresuited tocharacterize thelowerboundontheMSE, thantheCramer-Rao lowerbound(CRLB). We express thenthe lowerboundonMSE ofmaximumlikelihood estimator basedon perfect knowledge ofthe2ndorderstatistics ofthereceived signal bymeanoftheIZZLB.

http://ieeexplore.ieee.org/iel5/4483515/4487143/04487447.pdf

LowerBoundon Time-Delay Estimation Error of

In the cognitive radio the same band may be shared by several communication systems. In this framework, it is interesting to characterize and analyze the interference between co-existing communication systems sharing the same bands. We propose here a study1 of such influence of a wideband system on a classic narrow-band 3G-like communication system. The first part of the study is dedicated to characterize UWB interference frequency dependent behavior using UWB measurements database. The second part uses wideband/LTE-like interoperability testbed built at Eurecom to measure the interference effect of wideband systems on narrow band systems performance.

Characterization of frequency dependent behavior of wideband systems interference

In the UMTS-TDD (Universal Mobile Telecommunications System - time division duplex), the resource allocation and the quality of service are provided by the RRM (radio resource management). In this paper, methods to provide resources to real time (RT) application and non real time application in the downlink are proposed. The RT applications are usually carried on dedicated channel (DCH) but in certain conditions they are allowed to use DSCH (downlink shared channel) and NRT applications are carried only on the DSCH. Several algorithms are compared to specify which resources are allocated to a DCH. All the algorithms check that the power threshold is not reached in any slot. For the NRT applications, an adaptive scheduling developed by Lin is adapted to the system. The algorithm selected packets with respect to the channel state but by a credit system the scheduling is fair. Selected packets are carried by a DSCH. But a DSCH is allowed to be used only if its use does not disturb the transport of the RT applications. The CAC is not applied to the NRT applications.

Access control, code allocation, and adaptive scheduling for UMTS TDD

This abstract demonstrates an IoT based positioning service platform for future autonomous vehicles. A decision tree is developed which selects the best available positioning algorithm depending on several criteria. The decision tree is then integrated in EURECOM IoT Platform as a web service. We also present an Android Auto application which acts as a vehicular Cloudlet in this context.

IoT Based Positioning Service Platform

In this paper, we unveil the Software-Defined Low Latency (SDLL) framework based on Software-Defined Networking (SDN) to provision the Quality of Service (QoS) and guarantee ultra-low latency in 5G and beyond Transport Networks (TN). SDLL aims to tackle Time Sensitive Networking (TSN)'s weaknesses by providing agility and flexibility in terms of Traffic Engineering (TE) and Queue Management (QM) to guarantee low end-to-end (E2E) latency even under congested links. SDLL provides a flexible and on-demand way to change end-to-end paths and queue configurations (ex., add or remove queues). We conducted extensive experimentation by implementing SDLL using Open Network Operating System (ONOS) and Open vSwitch (OVS) tools and comparing its performances against two standard solutions: SDN Shortest Path (SDNSP) (one queue per port) and Software-Defined QoS (SDQoS) (three queues per port). Obtained results indicate that SDLL can guarantee low E2E latency compared to the two other solutions, particularly when: (1) the links are congested and (2) many low-latency critical services are run in parallel.

Christian Bonnet

Papers

LowerBoundon Time-Delay Estimation Error of

Characterization of frequency dependent behavior of wideband systems interference

Access control, code allocation, and adaptive scheduling for UMTS TDD

IoT Based Positioning Service Platform

SDN Framework for QoS provisioning and latency guarantee in 5G and beyond