The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper we present methods to reach 10-years of battery life for Industrial Internet of Things (IIoT) wireless sensor network (WSN) using a platform called the I3Mote. I3Mote provides connected sensor nodes for tough industrial environment and a number of I3Motes can form a large-scale coverage of data collectors or actuators. The goal is to achieve 10-years network life time for all the connected...
In this paper, we propose a cyclostationary noise model for narrowband power line communication (NB-PLC) based on frequency-shift (FRESH) filtering. The FRESH filters are designed to shape an input white noise spectrum to a cyclic spectrum extracted from experimental noise measurements. The noise modeling problem is considered as a system identification problem that minimizes the time-averaged mean...
A common impairment in both wireless and wireline orthogonal frequency division multiplexing (OFDM) schemes is narrowband interference (NBI). NBI has the detrimental effect of making the tones on which the NBI falls and in some cases neighboring tones unusable, thus reducing the effective signal-to-noise ratio (SNR) of the system. Some examples of mechanisms that generate NBI are switched mode power...
This paper presents the use of wireless sensor network (WSN) technologies in a newly growing application space in industrial Internet or industry 4.0. This application space focuses on factory automation and field process management that we call Machine Area Network (MAN) applications. We describe key requirements, major technical challenges and how hardware and software can be combined to address...
This paper presents the use of wireless sensor network (WSN) technologies in a newly growing application space in industrial Internet or industry 4.0. This application space focuses on factory automation and field process management that we call Machine Area Network (MAN) applications. We describe key requirements, major technical challenges and how hardware and software can be combined to address...
In this 15.875paper, we propose a method to achieve high data rates using a shortened orthogonal frequency division multiplexing (OFDM) frame format in the physical layer (PHY) for narrowband power line communication (NB PLC) systems. The new frame structure will combine the preamble and information in the same OFDM symbol so that the overhead from the preamble is reduced. Then we consider the optimal...
Non-Gaussian noise/interference severely limits communication performance of narrowband powerline communication (PLC) systems. Such noise/interference is dominated by periodic impulsive noise whose statistics varies with the AC cycle. The periodic impulsive noise statistics deviate significantly from that of additive white Gaussian noise, thereby causing dramatic performance degradation in conventional...
Narrowband power line communications (NB-PLC) operating in the 3–500 kHz frequency band is proposed as a solution to support the emerging Smart Grid applications that aim to optimize the efficiency and reliability of the power grids. PLC is attractive for Smart Grid communications as it can be deployed over the existing power grids without any additional infrastructure. However, PLC suffers from impulsive...
Current generation narrowband power-line communication systems are OFDM based. They are especially susceptible to narrowband interference (NBI) which is generated by switching power supplies and legacy communication systems. In this paper we propose a novel method for mitigating the effect of NBI. The method exploits a well-known characteristic of NBI spectral leakage in that it is frequency dependent...
Narrowband interference (NBI) is a significant impairment for multi-carrier modulation systems in both wireless and wireline channels. NBI may be generated by switching power supplies and legacy communication systems, and in many instances may be tonal in nature [1]. Recently, a novel method for mitigating the effect of NBI was proposed in [2] which works on minimizing the NBI spectral leakage by...
In this paper an overview of the PRIME specification v1.4 is given. In this new version, many additional features have been defined at both PHY and MAC layers to improve the existing PRIME technology and prepare it for LV grid enhanced operation. The communication robustness has been increased thanks to the innovative robust transmission modes especially designed to maintain a low system complexity...
This paper presents in detail channel and noise characteristics from 50 kHz to roughly 500 kHz based on the field tests over underground low voltage (LV) power lines in residential and industrial areas in Korean electricity grids. We show that the channel characteristics of narrowband signals over underground LV power lines are decent while from the literature, it is known that broadband signals on...
PRIME (PoweRline Intelligent Metering Evolution) is a narrowband Power Line Communications (PLC) technology targeted for use in smart metering applications. It is standardized as part of international Recommendations ITU-T G.9955 and G.9956, and there are currently a number of deployments by utilities in different markets which use it for a cost-effective, technically proven solution.
Live cell microscopy images enable to study the motion of subcellular particles for understanding biological processes within cells. For accurate quantification of the particle motion, compensation of the motion and deformation of the cell nucleus is required. We introduce a multi-frame non-rigid registration approach for live cell microscopy image sequences. Compared to existing approaches using...
A Smart Grid intelligently monitors and controls energy flows in an electric grid. Having up-to-date distributed readings of grid conditions helps utilities efficiently scale generation up or down to meet demand. Narrowband powerline communication (PLC) systems can provide these up-to-date readings from subscribers to the local utility over existing power lines. A key challenge in PLC systems is overcoming...
This paper presents in details the implementation and field test results of a software defined power line communication (PLC) modem using digital signal processor (DSP). The flexible software architecture using a single hardware supports multiple standard solutions, such as PRIME, G3, IEEE P1901.2. The modem software can also be configured to use different OFDM technologies to combat channel impairment...
Power Line Communication or PLC - Using power line to connect and communicate is not new. But the data flowing over power lines connecting smart energy devices inside and outside homes imposes new challenges. Those devices include electrical meters (e-Meters or smart meters), distributed generators (wind, solar, heat+power), power switches, power plants, inverters, and distributed consumer electronics,...
This paper addresses power-line communication (PLC) for automated metering infrastructure (AMI) and automated meter reading (AMR) applications in North America, with specific focus on the physical layer. FCC regulations permit powerline communication systems in the US to use the band from 9 kHz to roughly 500 kHz. This paper presents channel and noise characteristics in this band, based on field tests...
Fluorescence recovery after photobleaching (FRAP) is an important technique for analyzing subcellular processes in living cells. To quantify the acquired data, the fluorescence signal within the cytoplasm and the nucleus of a target cell needs to be determined at each time point. However, the movement and deformation of the cell as well as low contrast render manual and automatic analysis difficult...
We compare the performance of different powerline communication (PLC) systems under various realistic noise conditions, namely white noise, periodic impulsive noise in the time-domain, and narrowband co-channel interference. We base the study on narrowband (<; 500 kHz) PLC based on OFDM in general, with specific focus on two prominent PLC industrial specifications for e-metering applications: PRIME...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.