EAI Endorsed Transactions on Internet of Things

EAI Endorsed Transactions on Internet of Things

Basic info

  • Publisher: European Alliance for Innovation
  • Country of publisher: belgium
  • Date added to EuroPub: 2019/Jun/07

Subject and more

  • LCC Subject Category: Computer and Information Science, Computer Architecture
  • Publisher's keywords: Internet, Computer, Data, Internet of Things, Technology
  • Language of fulltext: english

Publication charges

  • Article Processing Charges (APCs): No
  • Submission charges: No
  • Waiver policy for charges? No

Editorial information

Open access & licensing

  • Type of License: CC BY
  • License terms
  • Open Access Statement: Yes
  • Year open access content began: 2015
  • Does the author retain unrestricted copyright? True
  • Does the author retain publishing rights? True

Best practice polices

  • Permanent article identifier: DOI
  • Content digitally archived in:
  • Deposit policy registered in: None

This journal has '73' articles

Tele-Economics in MTC: what numbers would not show

Tele-Economics in MTC: what numbers would not show

Authors: Andres Laya, Amirhossein Ghanbari, Jan Markendahl
( 0 downloads)
Abstract

This paper elaborates on the relevance of Tele-Economic research to understand the effect that Machine-Type Commu- nications (MTC) has on different markets and also the market forces affecting the adoption of services based on MTC. The paper is presented in a tutorial form, offering concept and definitions of economic terms that are gaining relevance in the technical community in the MTC context. The concept of services is further analysed in as a change in the tele- communication industry mind-set in order to tap into the economic value of MTC in the realization of the Internet-of- Things. Finally, insights are presented looking forward into the relevance of Tele-Economic research for 5G.

Keywords: Tele-Economic research, service enablement, Machine Type Communication, Internet-of-Things
Dedicated networks for IoT: PHY / MAC state of the art and challenges

Dedicated networks for IoT: PHY / MAC state of the art and challenges

Authors: C. Goursaud, J. M. Gorce
( 0 downloads)
Abstract

This paper focuses on the the emerging transmission technologies dedicated to IoT networks.We first analyze the classical cellular network technologies when taking into account the IoT requirements, and point out the need of dedicated technologies for IoT. Then, we present the PHY and MAC layers of the technologies that are already deployed, or likely to be deployed: UNB by SigFox, CSS by LoRaTM,Weighless, and RPMA by Ingenu. We then compare their performances to highlight their pros and cons. Finally, we discuss on the open research challenges that still need to be addressed.

Keywords: Internet of Things, M2M, PHY and MAC layer, Long Range transmissions
Device-to-Device Communications for 5G Internet of Things

Device-to-Device Communications for 5G Internet of Things

Authors: L. Militano, G. Araniti, M. Condoluci, I. Farris, A. Iera
( 0 downloads)
Abstract

The proliferation of heterogeneous devices connected through large-scale networks is a clear sign that the vision of the Internet of Things (IoT) is getting closer to becoming a reality. Many researchers and experts in the field share the opinion that the next-to-come fifth generation (5G) cellular systems will be a strong boost for the IoT deployment. Device-to- Device (D2D) appears as a key communication paradigm to support heterogeneous objects interconnection and to guarantee important benefits. In this paper, we thoroughly discuss the added-value features introduced by cellular/noncellular D2D communications and its potential in efficiently fulfilling IoT requirements in 5G networks. State-of-the-art solutions, enabling radio technologies, and current standardization activities for D2D communications are surveyed and their pros and cons with reference to manifold IoT use cases pointed out. Future research directions are then presented towards a fully converged 5G IoT ecosystem.

Keywords: Device-to-Device; Internet of Things; Proximity services; 5G systems
Platforms and Protocols for the Internet of Things

Platforms and Protocols for the Internet of Things

Authors: Chiara Pielli, Daniel Zucchetto, Andrea Andrea Zanella, Lorenzo Vangelista, Michele Zorzi
( 0 downloads)
Abstract

Building a general architecture for the Internet of Things (IoT) is a very complex task, exacerbated by the extremely large variety of devices, link layer technologies, and services that may be involved in such a system. In this paper, we identify the main blocks of a generic IoT architecture, describing their features and requirements, and analyze the most common approaches proposed in the literature for each block. In particular, we compare three of the most important communication technologies for IoT purposes, i.e., REST, MQTT, and AMQP, and we also analyze three IoT platforms: openHAB, Sentilo, and Parse. The analysis will prove the importance of adopting an integrated approach that jointly addresses several issues and is able to flexibly accommodate the requirements of the various elements of the system. We also discuss a use case which illustrates the design challenges and the choices to make when selecting which protocols and technologies to use.

Keywords: Internet of Things, IoT architecture, IoT protocols, REST, MQTT, AMQP, IoT middleware
Crowdsensing Solutions in Smart Cities towards a Networked Society

Crowdsensing Solutions in Smart Cities towards a Networked Society

Authors: Á. Petkovics, V. Simon, I. Gódor, B. Böröcz
( 0 downloads)
Abstract

The goal of the paper is to give an overview of the most relevant aspects of mobile crowdsensing that are already utilized by the society. The paper focuses on best practices applied in smart cities today, how these applications can be motivated (incentives), and how they rely on technology enablers of today’s vertical silos and future’s horizontal approaches. We introduce a path for transforming the vertical silos of today containing separated solutions in various domains into a horizontal, unified ecosystem, giving a way to novel technology and business opportunities.

Keywords: crowdsourcing, mobile crowdsensing, smart city, networked society
IoT Community Technologies: Leaving Users to Their Own Devices or Orchestration of Engagement?

IoT Community Technologies: Leaving Users to Their Own Devices or Orchestration of Engagement?

Authors: M. Balestrini, T. Diez, P. Marshall, A. Gluhak, Y. Rogers
( 0 downloads)
Abstract

Citizens are increasingly crowdfunding IoT based participatory sensing technologies that allow them to collect and share data about the environment. These initiatives are usually referred to as grassroots and are driven by a vision of widening access to tools for political action. In this paper we compare patterns of participation and user experience over 15 months in two distinct communities using ‘Smart Citizen’, a crowdfunded IoT participatory sensing tool. Our studies reveal that technology issues and a lack of reliability of the sensed data hindered user participation. However, in one of the communities, many of these challenges were overcome through orchestrated actions led by community champions. We discuss how crowdfunding doesn’t necessarily translate into active participation and provide guidelines on how to achieve sustained engagement in crowdfunded IoT community sensing projects: enable distributed orchestration provided by local champions, encourage social interactions that embed skills and learning, and facilitate meaningful participation and reward mechanisms among community members.

Keywords: IoT community technologies, engagement, crowdfunding, social action, activism, participatory sensing
An automated testbed for profiling the packet send-time accuracy of embedded devices

An automated testbed for profiling the packet send-time accuracy of embedded devices

Authors: Ricky K. P. Mok, Weichao Li, Rocky K. C. Chang, Kwok-Wun Yung, Ching-Ho Chan, Yat-Sing Poon
( 0 downloads)
Abstract

Embedded devices, such as home routers or single-board computers, are becoming more powerful and affordable. Many of the existing Linux-based network measurement tools can also be run on these devices through cross-compilation. These features provide more incentive for network administrators or researchers to employ them as network measurement probes. Large-scale measurement projects, such as BISMark and RIPE, have already deployed more than hundreds of home routers as vantage points to measure the Internet from the edge. Our previous work showed that these embedded devices have much lower packet send-time accuracy compared to commodity PC. The lower accuracy limits their ability to acquire sound measurement results in high-speed networks. In this poster, we present an automated testbed to systematically benchmark the performance of four popular embedded devices (Raspberry Pi I & II, ECS LIVA, and a TP-Link Travel Router) and suggest the network types that they can accurately measure. The testbed can also evaluate the performance of the kernel-space tools using OMware. The results can be visualized through a web interface, thus enabling users to compare various devices easily.

Keywords: embedded devices, network measurement, packet send-time accuracy
Authorization-based Approach for Customized Automated Resource Provisioning Services

Authorization-based Approach for Customized Automated Resource Provisioning Services

Authors: Tananun Orawiwattanakul, Hideki Otsuki, Eiji Kawai, Shinji Shimojo
( 0 downloads)
Abstract

Combining the concept of software control with existing legacy network technology promotes new networking services with low capital expenditure. Currently, many testbeds and academic operators provide bandwidth on demand (BoD) services over layers 2 and 3 wide area network. BoD decreases operational expenditures and manual errors. However, administrators must continue to manually configure virtual circuits for different stakeholders to accommodate configuration conflicts, quality of service (QoS), and service policies. This paper proposes a BoD framework called AutoNET to provide a set of BoD services with independent abstract topologies, resource allocation, and different QoS levels. User authorization is employed to control the eligibility to access a given BoD service. AutoNET uses the extended On-Demand Secure Circuits and Advance Reservation System (OSCARS) as controller software and MultiProtocol Label Switching (MPLS) as a transport technology.

Keywords: automated resource provisioning, bandwidth on demand, dynamic circuit network, quality of service
Joint Optimization of Carrier Sensing Threshold and Transmission Rate in Wireless Ad Hoc Networks

Joint Optimization of Carrier Sensing Threshold and Transmission Rate in Wireless Ad Hoc Networks

Authors: Yongping Zhang, Bo Li, Mao Yang, Zhongjiang Yan, Xiaoya Zuo
( 0 downloads)
Abstract

The ever-increasing demands of wireless traffic call for continuously growing the wireless network capacity or throughput. Carrier sensing threshold adaptation and transmission rate adaptation, two efficient mechanisms improving the capacity of ad hoc network, have attracted much attention in recent years. However, simply adopting either mechanism can hardly meet the expectation that optimizing the network capacity. In this paper, we investigate the joint optimization of carrier sensing threshold and transmission rate to improve the network capacity or throughput. The area capacity (throughput), which is defined as the network capacity (throughput) per unit area, is theoretically analyzed. Meanwhile, the relationship between carrier sensing threshold and transmission rate is theoretically revealed. Furthermore, the optimal area capacity is obtained by jointly optimizing the carrier sensing threshold and the transmission rate. Simulation results validate our analysis and derived results, and show that the throughput is significantly improved by the joint optimization.

Keywords: carrier sensing threshold, transmission rate, area throughput, area capacity
Approximate Transient Analysis of Queuing Networks by Decomposition based on Time-Inhomogeneous Markov Arrival Processes

Approximate Transient Analysis of Queuing Networks by Decomposition based on Time-Inhomogeneous Markov Arrival Processes

Authors: Andras Horvath, Alessio Angius
( 0 downloads)
Abstract

We address the transient analysis of networks of queues with exponential service times. Such networks can easily have such a huge state space that their exact transient analysis is unfeasible. In this paper we propose an approximate transient analysis technique based on decomposing the queues of the network using a compact and approximate representation of the departure process of each queue. Namely, we apply time-inhomogeneous Markov arrival processes (IMAP) to describe the stream of clients leaving the queues. By doing so, the overall approximate model of the network is a time-inhomogeneous continuous time Markov chain (ICTMC) with significantly less number of states than there are in the original Markov chain. The proposed construction of the output IMAP of a queue is based on its transient state probabilities. We illustrate the approach first on a single M/M/1 queue and analyze the goodness of fitting of the departure process by numerical examples. Then we extend the approach to networks of queues and evaluate the precision of the resulting technique on several simple numerical examples by comparing the exact and the approximate transient probabilities of the queues.

Keywords: queuing networks, markovian arrival processes, transient analysis, approximate analysis
TagFall: Towards Unobstructive Fine-Grained Fall Detection based on UHF Passive RFID Tags

TagFall: Towards Unobstructive Fine-Grained Fall Detection based on UHF Passive RFID Tags

Authors: Wenjie Ruan, Lina Yao, Quan Z. Sheng, Nickolas Falkner, Xue Li, Tao Gu
( 0 downloads)
Abstract

Falls are among the leading causes of hospitalization for the elderly and illness individuals. Considering that the elderly often live alone and receive only irregular visits, it is essential to develop such a system that can effectively detect a fall or abnormal activities. However, previous fall detection systems either require to wear sensors or are able to detect a fall but fail to provide fine-grained contextual information (e.g., what is the person doing before falling, falling directions). In this paper, we propose a device-free, fine-grained fall detection system based on pure passive UHF RFID tags, which not only is capable of sensing regular actions and fall events simultaneously, but also provide caregivers the contexts of fall orientations. We first augment the Angle-based Outlier Detection Method (ABOD) to classify normal actions (e.g., standing, sitting, lying and walking) and detect a fall event. Once a fall event is detected, we first segment a fix-length RSSI data stream generated by the fall and then utilize Dynamic Time Warping (DTW) based kNN to distinguish the falling direction. The experimental results demonstrate that our proposed approach can distinguish the living status before fall happening, as well as the fall orientations with a high accuracy. The experiments also show that our device-free, fine-grained fall detection system offers a good overall performance and has the potential to better support the assisted living of older people.

Keywords: fall detection, device-free, rfid, anomaly detection, household monitoring
The M/G/1 queueing model with preemptive random priorities

The M/G/1 queueing model with preemptive random priorities

Authors: Moshe Haviv
( 0 downloads)
Abstract

For the M/G/1 model, we look into a preemptive priority scheme in which the priority level is decided by a lottery. Such a scheme has no effect on the mean waiting time in the non-preemptive case (in comparison with the First Come First Served (FCFS) regime, for example). This is not the case when priority comes with preemption. We derived the resulting mean waiting time (which is invariant with respect to the lottery performed) and show that it lies between the corresponding means under the FCFS and the Last Come First Served with Preemption Resume (LCFS-PR) (or equivalently, the Egalitarian Processor Sharing (EPS)) schemes. We also derive an expression for the Laplace-Stieltjes transform for the time in the system in this model. Finally, we show how this priority scheme may lead to an improvement in the utilization of the server when customer decide whether or not to join.

Keywords: priority queues, preemption, performance evaluation
On mean waiting time completeness and equivalence of EDD and HOL-PJ dynamic priority in 2-class M/G/1 queue

On mean waiting time completeness and equivalence of EDD and HOL-PJ dynamic priority in 2-class M/G/1 queue

Authors: Manu Gupta, Nandyala Hemachandra, Jayendran Venkateswaran
( 0 downloads)
Abstract

This paper identifies two different parametrized dynamic priority queue disciplines, earliest due date (EDD) based and head of line priority jump (HOL-PJ), which are found to be mean waiting time complete in two class M/G/1 queue. An explicit one-to-one non linear transformation is obtained between earliest due date and delay dependent priority policy. Mean waiting time equivalence between these queue disciplines is established. Motivation behind the mean completeness and equivalence results is discussed from optimal control perspective. Notion of minmax fairness is introduced and it is argued that a simple global FCFS policy is the only solution for minmax fairness problem in two class by exploiting completeness in the structure of EDD based dynamic priority. Further, these completeness results are used to propose a simpler way for developing optimal control policy in celebrated c/ρ rule for two class M/G/1 queues.

Keywords: parametrized dynamic priority, optimal control, multi-class queue, achievable region
Flow coupling and stochastic ordering of throughputs in linear networks

Flow coupling and stochastic ordering of throughputs in linear networks

Authors: Lasse Leskelä
( 0 downloads)
Abstract

Robust estimates for the performance of complicated queueing networks can be obtained by showing that the number of jobs in the network is stochastically comparable to a simpler, analytically tractable reference network. Classical coupling results on stochastic ordering of network populations require strong monotonicity assumptions which are often violated in practice. However, in most real-world applications we care more about what goes through a network than what sits inside it. This paper describes a new approach for ordering flows instead of populations by augmenting network states with their associated flow counting processes and deriving Markov couplings of the augmented state-flow processes.

Keywords: flow coupling, non-markov coupling, strong order, stochastic comparison, stochastic domination, stochastic monotonicity
End-to-End Delay Bounds for Variable Length Packet Transmissions under Flow Transformations

End-to-End Delay Bounds for Variable Length Packet Transmissions under Flow Transformations

Authors: Hao Wang, Jens Schmitt
( 0 downloads)
Abstract

A fundamental contribution of network calculus is the convolution-form representation of networks which enables tight end-to-end delay bounds. Recently, this has been extended to the case where the data flow is subject to transformations on its way to the destination. Yet, the extension, based on so-called scaling elements, only applies to a setting of identically sized data units, e.g., bits. In practice, of course, one often has to deal with variable-length packets. Therefore, in this paper, we address this case and propose two novel methods to derive delay bounds for variable-length packets subject to flow transformations. One is a relatively direct extension of existing work and the other one represents a more detailed treatment of packetization effects. In a numerical evaluation, we show the clear superiority of the latter one and also validate the bounds by simulation results.

Keywords: variable length packet, demultiplexing, network calculus, packet scaling element

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