A5030097190- Wireless Body Area Networks
- Ultra-Wideband Communications Technology
- Antenna Design and Analysis
- Air Quality and Health Impacts
- Vehicle emissions and performance
- Air Quality Monitoring and Forecasting
- Atmospheric chemistry and aerosols
- IoT and Edge/Fog Computing
- Bluetooth and Wireless Communication Technologies
- Energy Harvesting in Wireless Networks
- IoT Networks and Protocols
- Millimeter-Wave Propagation and Modeling
- Power Transformer Diagnostics and Insulation
- Radioactivity and Radon Measurements
- Digital Transformation in Industry
- Age of Information Optimization
- Atmospheric aerosols and clouds
- nanoparticles nucleation surface interactions
- Advanced Combustion Engine Technologies
- Construction Project Management and Performance
- Gas Sensing Nanomaterials and Sensors
- Mercury impact and mitigation studies
- Gyrotron and Vacuum Electronics Research
- Radio Frequency Integrated Circuit Design
- Catalytic Processes in Materials Science
Dekati (Finland)
2009-2024
University of Oulu
2010-2020
Swiss Federal Laboratories for Materials Science and Technology
2004
This paper presents an updated survey on research related to ultra wideband (UWB) communications, particularly that of impulse radio (IR) technology. In addition the research, we UWB physical layer specifications two existing standards-the IEEE 802.15.6-2012 and 802.15.4-2015-as well as leading global spectrum regulatory limitations which have been recently. The latter standard including was first published in 2007 latest revision dates 2015. focus this is period from Our purpose provide...
Abstract Nations and cities are eagerly joining the global trend of transition to digitized society. Through digitalization, societies aim streamline their key functions develop modern services inhabitants. 5G wireless networks being built globally with lots expectations put on them. It is anticipated that at first phase 5G, technology will benefit most different verticals like factories, hospitals campuses. Universities have likewise awoken establish digitalization projects respond...
The Dekati mass monitor (DMM; Ltd., Finland), a relatively new real-time measurement instrument, was investigated in this project. In contrast to the existing gravimetric filter method also used as standard for regulation purposes, instrument provides second-by-second data on concentration engine exhaust gas. principle of DMM is based particle charging, inertial and electrical size classification, detection aerosol particles. This study focuses instrument's practical performance. Details...
Abstract. Atmospheric emissions, including particle number and size distribution, from a 726 MWth coal-fired power plant were studied experimentally stack flue-gas plume dispersing in the atmosphere. Experiments conducted under two different cleaning conditions. The results utilized dispersion dilution model taking into account formation precursor (H2SO4 resulted oxidation of emitted SO2) assessment related to nucleation rates. experiments showed that primary emissions particles SO2...
In households, municipal solid waste (MSW) is often burned along with wood to get rid of waste, help in ignition or simply reduce fuel costs. The aim this study was characterize the influence household combustion, wood, on physical and chemical properties particulate emissions a flue gas masonry heater. MSW burning alongside increased average matter (PM) mass (65%), lung deposited surface areas (LDSA, 15%), black carbon (BC, 65%) concentrations particle size gas. smaller during phases, but...
Particle emissions affect radiative forcing in the atmosphere. Therefore, it is essential to know physical and chemical characteristics of them. This work studied chemical, physical, optical particle from small-scale wood combustion, coal combustion a heating power plant, as well heavy light fuel oil at district station. Fine (PM1) were highest with high fraction absorbing material. The lowest mostly because efficient cleaning techniques used plant. composition aerosols included ions trace...
A novel particle emission sensor based on charging and electrical detection is presented. The charges the particles measures current carried by exiting sensor. measurement out without collecting particles. Thanks to this principle, mechanical construction of can be such that not prone fouling. intended application diesel vehicles. placed directly in exhaust flow tested vehicle, because there no need for any sampling or dilution gas. This together with method allows rapid time response,...
Wireless technology has been developing fast for years and is spreading to new areas of everyday life. One the newest healthcare welfare sector where it can be a significant way save costs improve existing procedures. The coming are going challenging as population, in developed countries especially, aging more patients need treatment but with same or even smaller number nursing staff than nowadays. Therefore there clear both improvement methods cutting down costs. In this paper, performance...
In wireless applications, power consumption has been, and will be, one of the important characteristics when designing any device. This is case especially in sensor networks where a single may be functioning, hopefully for very long time, without external source. Generally, architecture complexity reduces battery life, but performance increases with complexity. The best achieved most complex devices which, however, consume lot power. Rake receivers can offer good tradeoff between...
Ultra wideband (UWB) has lots of potential in short range wireless communications. One suitable target area is applications for medical and healthcare sector. In this paper, the performances different UWB receivers are investigated by simulations. The transceiver system was built following IEEE 802.15.4a physical layer definitions. standard, launched 2007, targeted low-complexity low-cost devices operating personal networks (WPANs) being therefore an option body (WBANs). Another 802.15.6...
Medical industry is potentially a big market for the wireless applications in coming years. As number of elder people increasing, need various body monitoring and measurement equipment increasing as well. However, having any kind electronic device next to human body, or even inside faces challenges. For area network (WBAN) solutions, battery life needs be long, has safe use un-harmful also other devices. From power usage point view, most complex high performance receivers are not best option...
The IEEE 802.15.6 standard for short range communications in or around human body was published February 2012. wireless area network (WBAN) characterizes both medium access control and physical layer (PHY) specifications. is disregarded here the focus on PHY definitions. There are three different options defined standard. interest this article impulse radio ultra wideband (UWB) In it, on-off keying (OOK) modulation stated to be one used with mandatory mode. simulation model has been...
This paper gives a performance overview of different types ultra wideband (UWB) receivers that can be used in wireless body area network (WBAN) applications. The studied are based on both coherent and non-coherent detections. signal structure is following the IEEE 802.15.4a standard channel models simulations experimental studies carried out at real hospital environment. Two links used; on-body link from to external access point. Otherwise, transceiver chain kept same all time distinguish...
In this paper, we are evaluating the performances of energy detector receiver with on-off-keying (OOK) and pulse position modulation (PPM) in ultra wideband (UWB) communications. Energy (ED) receivers considered as a low-complexity low-power consumption option for more complex
Particulate matter in the atmosphere is known to affect Earth’s climate and be harmful human health. Accurately measuring particles from emission sources important, as results are used inform policies models. This study compares of two ELPI + devices, PM10 cascade impactors an eFilter, combustion measurements. The comparison instruments a realistic setting shows what types challenges arise aerosol with unknown particle morphologies densities, different concentrations high temperature. Our...
Advantages of remote health monitoring are incontestable: prolonging the patient's possibility to stay at home by condition remotely, quality life is improved as well healthcare costs significantly reduced. Parkinson's disease one example, for which some wireless systems have been presented recently. However, concrete performance evaluations IEEE 802.15.6 standard based communication in realistic use scenarios not yet literature. The aim this paper evaluate ultra wideband energy detector...
Ultra wideband signals have been first generated in the late 19th century. However, using UWB data communications increased popularity since 1990s. Investigating effects of human body on propagation an signal gained more attention hand with studies. The studies and around it were performed early 2000s ever centric referred to as area network. In this paper, we are comparing different receivers capable detecting IEEE 802.15.4a format two WBAN hospital channels; 802.15.6 CM3 a real measured...
In this paper, we are evaluating the performances of energy detector receiver with on-off-keying (OOK) and pulse position modulation (PPM) in ultra wideband (UWB) communications. Energy (ED) receivers considered as a low-complexity low-power consumption option for more complex coherent receivers. Obviously, tradeoff low complexity is degraded detection performance. A challenge to define an optimized integration time OOK, defining optimal threshold decision received bit. Here, these variables...