João Henrique Kleinschmidt

João Henrique Kleinschmidt
Universidade Federal do ABC (UFABC) | UFABC · Center for Engineering, Modeling and Applied Social Sciences (CECS)

PhD

About

61
Publications
20,854
Reads
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503
Citations
Citations since 2016
30 Research Items
381 Citations
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2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
Introduction
João Henrique Kleinschmidt currently works at the Universidade Federal do ABC (UFABC). João does research in Computer Communications (Networks), Computer Security, Internet of Things and Distributed Computing.
Additional affiliations
February 2008 - February 2010

Publications

Publications (61)
Conference Paper
Full-text available
This paper analyzes the energy efficiency of wireless sensor networks using different error control schemes. An analytical model is presented to evaluate the energy efficiency in Nakagami-ra fading channels. The model is applied to error control schemes of Bluetooth technology. Some custom error control schemes and adaptive techniques using differe...
Article
Full-text available
Since a genome is a discrete sequence, the elements of which belong to a set of four letters, the question as to whether or not there is an error-correcting code underlying DNA sequences is unavoidable. The most common approach to answering this question is to propose a methodology to verify the existence of such a code. However, none of the method...
Conference Paper
Full-text available
This paper proposes adaptive error control strategies for wireless sensor networks using informational value of messages. The informational value is based on sensors coverage area. Important packets are protected by more powerful error control schemes than less important packets. BCH codes and retransmission schemes were analyzed using OQPSK modula...
Article
Full-text available
The question raised by researchers in the field of mathematical biology regarding the existence of error-correcting codes in the structure of the DNA sequences is answered positively. It is shown, for the first time, that DNA sequences such as proteins, targeting sequences and internal sequences are identified as codewords of BCH codes over Galois...
Article
This paper analyzes the effect of custom error control schemes on the energy efficiency in Bluetooth sensor networks. An analytical model is presented to evaluate the energy efficiency metric, which considers in just one parameter the energy and reliability constraints of wireless sensor networks. New packet types are introduced using some error co...
Article
Full-text available
The management of IoT solutions is a complex task due to their inherent distribution and heterogeneity. IoT management approaches focus on devices and connectivity, thus lacking a comprehensive understanding of the different software, hardware, and communication components that comprise an IoT-based solution. This paper proposes a novel four-layer...
Preprint
Full-text available
LoRaWAN is one of the most popular LPWAN technology due to the facility to implement applications that require a low cost, low energy consumption, low data rate, and large coverage area. A LoRaWAN network is composed of end-devices that transmit data to gateways, forming a single-hop star topology. Multihop networks are receiving the attention of t...
Preprint
Full-text available
LoRaWAN is one of the most popular LPWAN technology due to the facility to implement applications that require a low cost, low energy consumption, low data rate, and large coverage area. A LoRaWAN network is composed of end-devices that transmit data to gateways, forming a single-hop star topology. Multihop networks are receiving the attention of t...
Conference Paper
Plataformas de IoT gerenciam sensores, atuadores e dados distribuídos, conectando dispositivos heterogêneos com aplicações que agregam valor aos dados coletados. Embora existam diversas plataformas de IoT, muitas são complexas, pouco versáteis e caras, carecendo ainda de informações sobre o seu desempenho e escalabilidade, prejudicando uma comparaç...
Conference Paper
As LoRaWAN has been increasingly used in the Internet of Things (IoT) smart agriculture, efficacious deployments of this technology need a clear understanding of its performance and scalability tradeoffs. This paper proposes a two-step methodology to evaluate the performance of LoRaWAN based on simulation for understanding the behavior of the air i...
Conference Paper
Smart farming is an emerging and important application of the Internet of Things (IoT) technology. This work describes a multi-depth and multi-parameter probe for soil data collection utilized to on-farm research by the SWAMP project. The probe is based on LoRaWAN communication and has sensors for soil moisture, temperature, and electrical conducti...
Article
Full-text available
The growth of the Internet of Things (IoT) led to the deployment of many applications that use wireless networks, like smart cities and smart agriculture. Low Power Wide Area Networks (LPWANs) meet many requirements of IoT, such as energy efficiency, low cost, large coverage area, and large-scale deployment. Long Range Wide Area Network (LoRaWAN) n...
Article
Increased longevity and people's concern about aging with quality has led to increased health and wellness data. Much of the data is not interoperable because of its divergent structures and semantics, being little used and little protected. Existing standards are complex and lack the adherence of the agents involved to ensure their application. Bl...
Article
Full-text available
Layered internet of things (IoT) architectures have been proposed over the last years as they facilitate understanding the roles of different networking, hardware, and software components of smart applications. These are inherently distributed, spanning from devices installed in the field up to a cloud datacenter and further to a user smartphone, p...
Conference Paper
Full-text available
The use of the Internet of Things (IoT) and other related technologies in precision irrigation for agriculture may optimize the use of water, reduce energy consumption, and improve the quality of crops. The SWAMP project is implementing IoT in this domain in four pilots in Europe and Brazil, where heterogeneous devices and distributed components fo...
Conference Paper
Full-text available
Os veículos aéreos não tripulados (VANTs) de pequeno porte têm se tornado cada vez mais populares em aplicações civis. Os VANTs possuem restrições cinemáticas que reduzem sua capacidade de operação. Portanto, é fundamental considerar essas restrições para se obter trajetórias factíveis. Este trabalho tem o objetivo de implementar um algoritmo capaz...
Conference Paper
Full-text available
O presente trabalho avaliou o desempenho de uma rede LoRaWAN na conjuntura de Internet das Coisas para um Campus Inteligente. Os testes foram realizados no campus Santo André da Universidade Federal do ABC, onde foram aferidas a taxa de perda de pacotes, a potencia do sinal e configurações de transmissão. Os resultados obtidos mostraram que, apesar...
Conference Paper
Full-text available
The concept of Internet of Things (IoT) comes with a large number of devices linked to the Internet, including urban, industrial and agriculture environment. Managing and monitoring these devices, whether virtual or physical, across multiple hardware and software platforms, is a major challenge. There are market solutions but for specific domain an...
Conference Paper
Full-text available
In the current stage of IoT deployment, developers and integrators have to build and deploy the entire end-to-end components of a smart application. In the future, sensing and actuation systems will be already in place, and new developments will have to use these legacy systems, building a complex ecosystem. In this paper, we advocate that openness...
Conference Paper
Full-text available
In the current stage of IoT deployment, developers and integrators have to build and deploy the entire end-to-end components of a smart application. In the future, sensing and actuation systems will be already in place, and new developments will have to use these legacy systems, building a complex ecosystem. In this paper, we advocate that openness...
Conference Paper
Full-text available
LoRaWAN is a new technology that has been consolidating as a key data communication component to send data in IoT-based systems, due to its ability to send data over long distances with low energy costs. However, literature considers only wireless aspects, disregarding its computational aspects and its integration with IoT platforms, as well as ign...
Article
Full-text available
In the Internet of Things (IoT) heterogeneous devices can cooperate and communicate to provide or require determined services. A multi-service IoT is vulnerable to many types of malicious attacks. A trust management scheme is a strategy to establish trust between devices. In this work we propose a distributed trust management model for IoT using di...
Article
Full-text available
The establishment of trust in vehicular ad hoc networks (VANETs) will require the application of non-conventional measures of information security, such as reputation of the participants. The system proposed in this paper uses the concept of certified reputation, in which vehicles communicate providing digital certificates that include their own re...
Conference Paper
Full-text available
The intensive use of technology in precision irrigation for agriculture is getting momentum in order to optimize the use of water, reduce the energy consumption and improve the quality of crops. Internet of Things (IoT) and other technologies are the natural choices for smart water management applications, and the SWAMP project is expected to prove...
Chapter
Full-text available
This work is a minicourse on the RPL routing protocol for the Internet of Things (IoT), standardized by the IETF for low power and lossy networks. It aims to show the main characteristics of the protocol, as well as to raise the problems and proposals of solutions for mobility and information security related to routing for IoT. With the expectatio...
Conference Paper
Full-text available
An important issue in IoT involving M2M networks is the connectivity of sensors and actuators. In general short-range technologies have been used in ISM RF bands, mesh networks and GSM networks, leading to energy consumption and complex and expensive devices. The LPWAN networks in Sub GHz bands offer alternatives to these technologies. This article...
Conference Paper
Full-text available
The Internet of Things (IoT) has attracted attention in recent years, both in the academic area and in the business world. However, for the operation of IoT, it was necessary to develop new protocols, among them the RPL routing protocol. This protocol meets the demands of low power and lossy networks and is the only standardized routing protocol fo...
Conference Paper
The Internet of Things is emerging as a network to connect any device and objects. In this paper we propose an architecture and implementation of a wireless sensor network using standard IoT protocols. Using CoAP, 6LoWPAN, RPL and 802.15.4 standard, we show an application of monitoring physical characteristics of an indoor environment.
Conference Paper
In the Internet of Things (IoT) smart objects are able to provide or require specific services. The goal of this work is to identify malicious behavior of nodes performing selective attacks. In this type of attacks the nodes selectively decide what kind of service they will provide to the network, in order to save resources. We use a trust manageme...
Conference Paper
Full-text available
With the increasing use of the RPL for wireless sensor networks, that will be used in the Internet of Things, the issues related about the protocol behavior in mobile scenarios have appeared. Much of the questions are given by the lack of standardization of the protocol for this type of scenario. In this article the RPL will be evaluated in a mobil...
Chapter
Full-text available
Cidades estão se tornando mais inteligentes à medida em que tecnologias novas e existentes são cada vez mais empregadas na oferta de uma grande variedade de serviços e aplicações, tanto para o cidadão, quanto para a própria municipalidade. Cidades inteligentes envolvem não apenas a tecnologia, mas também as pessoas e o governo, unidos para equaliza...
Article
Full-text available
In the Internet of Things (IoT), physical objects are able to provide or require determined services. The purpose of this work is to identify malicious behavior of nodes and prevent possible On-Off attacks to a multiservice IoT. The proposed trust management model uses direct information generated from direct communication with the nodes to evaluat...
Conference Paper
Full-text available
A Internet das Coisas (IoT) se refere à interconexão da rede formada por objetos inteligentes, além do conjunto das tecnologias que compõem esses objetos e suas aplicações e serviços. Possui grandes limitações em recursos computacionais, o que torna desafiadora a questão de segurança dos dados. Este trabalho analisa o desempenho do protocolo de seg...
Article
Full-text available
The number of users of VoIP services is increasing every year. Consequently, VoIP systems get more attractive for attackers. This paper describes the implementation of a low interaction honeypot for monitoring illegal activities in VoIP environments. The honeypot operated during 92 days and collected 3502 events related to the SIP protocol. The ana...
Article
Full-text available
Since a genome is a discrete sequence, the elements of which belong to a set of four letters, the question as to whether or not there is an error-correcting code underlying DNA sequences is unavoidable. The most common approach to answering this question is to propose a methodology to verify the existence of such a code. However, none of the method...
Article
Internet of Things enables everyday objects to communicate with each other using communication protocols designed specifically for low power devices. The main technologies that make it possible are wireless sensor networks and radio-frequency identification (RFID) devices. This article studied the applications that can be developed with the Interne...
Article
This paper analyzes the performance of error control strategies in IEEE 802.15.4 wireless sensor networks. ARQ schemes of the IEEE 802.15.4 are used and also we propose custom coding using BCH codes. The performance is analyzed through simulation using the energy efficiency parameter. Performance results are obtained for multi-hop networks with dif...
Article
Full-text available
This paper proposes a service oriented middleware architecture for wireless sensor networks (WSNs) with security requirements. The web services standards XML, SOAP and WSDL are used for network communication. For the WSN security the WS-Security specification is applied, using cryptography and authentication for the data traffic. A prototype develo...
Conference Paper
Full-text available
One of the puzzling problems in mathematical biology is to show the existence of any form of error-correcting code in the DNA structure. Here we propose a model for the biological coding system similar to that of a digital communication system. This model consists of an encoder (a mapper and a BCH code over Z4) and a modulator (genetic code). Here...
Article
Full-text available
Bluetooth is a promising wireless technology designed for personal ad hoc networks. This paper proposes a piconet scheduling algorithm based on the estimated channel state information. This policy is appropriate for wireless and mobile communications networks. The proposed algorithm is suitable for Bluetooth networks employing power class one devic...
Chapter
Wireless sensor networks (WSNs) consist of a large number of low-cost and low-power sensor nodes. Some of the applications of sensor networks are environmental observation, monitoring disaster areas and so on. Distributed evolutionary computing is a poweful tool that can be applied to WSNs, because these networks require algorithms that are capable...
Chapter
Bluetooth (Bluetooth SIG, 2004) and ZigBee (ZigBee Alliance, 2004) are short-range radio technologies designed for wireless personal area networks (WPANs), where the devices must have low power consumption and require little infrastructure to operate, or none at all. These devices will enable many applications of mobile and pervasive computing. Blu...
Conference Paper
Full-text available
This paper analyzes the effect of custom error control schemes on the energy efficiency in Bluetooth sensor networks. The energy efficiency metric considers in just one parameter the energy and reliability constraints of the wireless sensor networks. New packet types are introduced using some error control strategies in the AUX1 packet, such as Ham...
Article
Full-text available
Once Wireless Local Networks (WLAN) and Bluetooth devices share the same frequency band (ISM) there is a potential risk of interference if they are supposed to operate close to each other. Additionally, the signal fading effects on mobile Bluetooth networks may deeply affect the overall performance. That is why the use of strategies that minimize t...
Conference Paper
Full-text available
This paper studies different error control schemes in wireless sensor networks with Bluetooth technology. The tradeoff between reliability and energy consumption of Bluetooth packets are analyzed, using different error control techniques, such as retransmission and channel coding. The AUX1 packet is utilized for custom coding and also adaptive tech...
Article
Full-text available
Resumo — Este artigo propõe uma rede de sensores usando Bluetooth para aplicações com baixas transmissões de dados. Um nó de gerência é responsável em descobrir e manter uma tabela de roteamento do nós sensores. Assim que os nós e rotas são descobertos, todos os enlaces são desconectados, eliminando gerenciamento desnecessário da scatternet. Result...
Conference Paper
Full-text available
Bluetooth is a promising wireless technology designed for short-range ad hoc networks. This paper addresses issues related to Bluetooth performance in Nakagami-m fading channels. This distribution can model different fading intensities through parameter m. We evaluate the throughput and the packet loss rate of Bluetooth links using asynchronous pac...
Conference Paper
Full-text available
Bluetooth is an emerging technology for personal wireless communications and is being applied in many scenarios. We investigate the data scheduling policy for Bluetooth piconets. In general the performance evaluation of most piconet scheduling algorithms recently proposed do not consider the packet losses in the wireless channel. However in environ...
Article
Full-text available
The Bluetooth standard is considered a promising technology for implementing ad-hoc networks. This paper addresses issues related to Bluetooth performance in Nakagami-m fading channels. This distribution allows a better channel characterization for mobile and wireless communications. The throughput of Bluetooth links using asynchronous packets is i...

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Projects

Projects (4)
Project
The primary objective of the SWAMP project is to develop IoT based methods and approaches for smart water management in precision irrigation domain and to pilot the approaches in four places, two pilots in Europe (Italy and Spain) and two pilots in Brazil. Also, it aims at improving precision irrigation by increasing the awareness of the condition of the crop, by monitoring the field based on crop status (size, growing phase) and environment (e.g. weather forecast) and to adapt the irrigation prescription map accordingly. Pilots focusing on smart water management aim at making sure that technological components are flexible enough to adapt to different contexts and to be replicable in different locations and settings. The same underlying SWAMP platform can be customized to different pilots considering different countries, climate, soil, and crops.
Project
The NUVEM Research Strategic Unity in Virtual Universes, Entertainment and Mobility, aims to produce new knowledge, build capacity, high-level and generate innovative and interdisciplinary solutions in areas related to Information and Communication Technologies (ICTs) and their interactions with demands of society, such as improving the quality of life and sustainability.