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Distributed Energy Resource (DER) is a small-scale power generator which can be distributed in near power consumption areas. A high ratio of DERs increases management complexity and also decreases supply stability of electric power. However, if DERs are suitably used, they can improve reliability shown in conventional electric power generation. Moreover, they can also eliminate the size and number...
This paper presents the multi-site photovoltaic (PV) power generation forecast using the deep-learning algorithms. South Korea PV power generation is the most popular among renewable energy sources as government policy. Form of PV power business is small scale which need to forecast the generation of energy. This paper present the forecast model for multi-site PV power plant using deep-learning algorithm...
The present paper allows to energy information collecting agent for IoT BigData system. Energy management system (EMS) is computer-based platform to monitor and control energy usage at a smart home and building. There are several model EMS — centralized and distributed. This paper suggested hybrid architecture of EMS for efficiently energy management.
As the introduction of distributed energy resources into power system is increasing and the service applications for them become more diverse, the scalability of the communication networks for monitoring and control becomes important. That is, a communication method considering loosely coupled and many-to-many relationships between distributed energy resources and their applications needs to be applied...
In this paper, a new type of compact mobile antenna that can generate circularly polarized wave is proposed. The antenna is composed of square-shaped ground plane, monopole type resonator and metal loop structure. Square-shaped ground has degenerate modes which are perpendicular. Resonant frequencies of degenerate modes are efficiently lowered by metal loop structure and are finely split by adjusting...
The utilization of the Ka-band in satellite communication systems is assumed to grow in near future. Studied have been carried out at Korea Radio Promotion Association, Mokdong, Seoul from four years meteorological, Ka-band, sourced from the National Radio Research Agency (RRA). This paper reports the results obtained from Ka-band signal measurement at the Earth station situated in 37.54470N and 126...
This paper proposes an optimization mechanism of energy cluster for a zero energy town (ZET), which is to maximize the efficiency of energy cluster. The energy cluster includes energy loads, distributed energy resources, energy storage systems and a connection to grids in a town. Even a town consists of a mix of zero energy buildings (ZEBs) and non-ZEBs, the town could be a ZET by using energy cluster...
Smart devices are an essential navigating tool on indoor and outdoor environments for work or leisure activities. Specially, it's very useful in first visited area and on traffic congestion. However, there are different requirements for the elderly, physically impaired people, blind and woman in pregnant, and so on. Moreover, indoor positioning is more important in urban living. Therefore, we investigate...
In this paper, we propose a new type of Virtual Network Function (VNF) scheme to realize the Virtual Bring-Your-Own-Device (vByod) service in NFV platform. The proposed scheme allows users to enjoy more powerful computing resource provided by NFV server, and it also significantly improves service quality in terms of security, mobility, and service delay.
In recent days, demands for public safety services have increased because of increased crimes. This paper proposes multi-log analysis platform (M-LAP) for supporting public safety service. The M-LAP gathers image and sensor data of people, objects, and places, and then analyzes the data for detecting and predicting dangerous situations. The M-LAP also provides protectors (e.g., police officer) and...
Recently, attempts have been made to change the paradigm of existing plants by applying ICT to the manufacturing industry. It can be seen as an extension of factory automation, which used to automate production facilities and unmanned work in the past, but Smart Factory is an advanced model to predict and respond to the future situation. In this paper, we propose a controller that is optimized for...
Major web browsers have recently stopped supporting plugins due to several obstacles. Accordingly, in the geospatial domain, implementing high-resolution three-dimensional maps without plugins has become a trend. This paper presents our challenges in developing a web-based, three-dimensional, geospatial open platform using HTML5 and WebGL supporting a cross-browser and cross-platform.
This paper considers a relayed broadcast in IEEE 802.11 wireless local area (WLAN) networks. In the relayed broadcast, a source node intends to deliver data frames to many nodes beyond its coverage and all the nodes except the source node attempt to relay the received data frames in a contention-based and distributed manner. This traffic dissemination scheme, referred to as flooding, has several problems...
Accurate prediction of the future locations of the host vehicle as well as that of the surrounding objects is one of the key challenges in improving road traffic safety. The traditional approach for this task has been using physics-based motion models such as kinematic and dynamic models, the result of which is not reliable for long-term prediction. In this paper, we present simulation results demonstrating...
Recurrent neural network (RNN) has been broadly applied to natural language processing (NLP) and machine translation problems, by creating a deep learning model for sequential data. Hanmun is a Korean term for Chinese characters, and there are many cases in which Korean is pronounced by borrowing only the Chinese characters. Also, there are proper nouns and place names in the traditional Korean which...
We consider a full-duplex (FD) system where the uplink (UL) and downlink (DL) users are simultaneously served in the same bandwidth. We propose a new design that incorporates the power allocation for UL users and a joint beamforming and non-orthogonal multiple access for DL users under the effects of both residual self-interference and cochannel interference. In particular, a sum rate maximization...
This paper presents signaling architecture models and protocol procedures for SDN-based wireless access networks with Media Independent Management (MIM) capabilities. Three models are described for the framework of SDN and MIM controls, which are decoupled interworking, loosely-coupled integration, and tightly-coupled integration between SDN and MIM controls.
Impulse radio ultra-wideband (IR-UWB) radar measures vital signs such as respiration and heart rates based on the body's fine movement due to breathing or heartbeat. The conventional IR-UWB radar-based vital sign measurement algorithms measure respiration and heart rates mainly based on the frequency spectrum corresponding to the respiration and heart rates. This frequency domain approach has the...
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