• ETRI Journal
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• 제39권4호
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• pp.525-534
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• 2017

A hardware-acceleration architecture that separates virtual network functions (VNFs) and network control (called HSN) is proposed to solve the mismatch between the simple flow steering requirements and strong packet processing abilities of software-defined networking (SDN) forwarding elements (FEs) in SDN/network function virtualization (NFV) architecture, while improving the efficiency of NFV infrastructure and the performance of network-intensive functions. HSN makes full use of FEs and accelerates VNFs through two mechanisms: (1) separation of traffic steering and packet processing in the FEs; (2) separation of SDN and NFV control in the FEs. Our HSN prototype, built on NetFPGA-10G, demonstrates that the processing performance can be greatly improved with only a small modification of the traditional SDN/NFV architecture.

• 한국통신학회논문지
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• 제25권5A호
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• pp.743-750
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• 2000

본 논문에서는, 디지털 IF 다운 샘플러와 업 샘플러의 저전력 구현을 위한 블록 필터링 아키텍처를 제안한다. 소프트웨어 라디오와 같은 차세대 이동통신 방식에서 디지털 IF 다운 샘플러와 업 샘플러의 효율적인 구현방법이 더욱더 요구되어가고 있는 추세이다. 디지털 IF 다운 샘플러는 앞단에 데시메이션 필터를 수반하여 구성되며, 업 샘플러는 뒷단에 인터폴레이션 필터가 수반디어 구성된다. 본 논문의 다운 샘플러 아키텍처에서는 블록 필터링 구조가 갖는 병렬처리 구조를 이용하여 필터를 구현하였으며, 블록 필터링 아키텍처에서 구조적으로 생겨나는 업 샘플링을 직렬로 연결되는 다운 샘플러와 상쇄시킴으로서 효과적인 구조가 만들어짐을 보인다. 또한 업 샘플러 아키텍처에서는 인터폴레이션 필터의 블록 필터링에서 만들어지는 다운 샘플링이 앞단의 업 샘플러와 상쇄되어 병렬처리와 저속의 처리가 가능해짐을 보인다. 본 논문에서 제안된 아키텍처와 Polyphase 아키텍처를 비교 분석한다. 리와 저속의 처리가 가능해짐을 보인다. 본 논문에서 제안된 아키텍처와 Polyphase 아키텍처를 비교 분석한다.

• 한국실내디자인학회논문집
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• 제14권1호
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• pp.3-10
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• 2005

The purpose of this study is to find the relationship between hightech architecture and digital one through the discussion on Karl B tticher's view on tectonic in 19th century. The discussion of tectonics which has not been brought up until recently. Since there are no studies regarding contemporary architecture relating to Karl B tticher's view on tectonic, so it is fairly significant to study Karl B tticher's conception, discussion and relationship of contemporary architecture. To study the essence and meaning of Karl B tticher's view on tectonic in 19th century, we will analyze each examples of hightech architecture and digital architecture through Karl B tticher's dual form. B tticher insist that dualistic relationship is united and produced simultaneously. Because they have so closed relationship each other, it's impossible to apply only decoration without structure. Therefore they have mutual assistant relationship. A relationship can be found between hightech architecture's technology and structural symbol that Karl B tticher tried to find in steel which is new material ornament. Digital architecture can be confirmed as images which are made of maximum expose through consistent dynamics of structure. Karl Btticher try to find structural symbolism between new meterail, iron, and decoration. In modern architecture it has the closed relationship with high-tech technology.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.663-664
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• 2006

This paper presents a reconfigurable digital signal processing(rDSP) architecture that is effective for implementing adaptive digital signal processing in the applications of smart health care system. This rDSP architecture employs an evolution capability of FIR filters using genetic algorithm. Parallel genetic algorithm based rDSP architecture evolves FIR filters to explore optimal configuration of filter combination, associated parameters, and structure of feature space adaptively to noisy environments for an adaptive signal processing. The proposed DSP architecture is implemented using Xilinx Virtex4 FPGA device and SMIC 0.18um CMOS Technology.

• 한국디지털건축인테리어학회논문집
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• 제8권1호
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• pp.5-14
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• 2008

This study is the one of the step to propose the Design studio course that apply concept of 'BIM" that is new digital environment of Architecture. This Study propose as followed, First. The proposal of the experimental course of the Design studio, Second, Application of course of study, Third, The design course of study is proceeded by purpose of completion of BIM. This study is proceeded by the purpose of the concept of the BIM first and proposals of fundamental ideas that apply the idea. Proposed training courses are marked by that divide three areas of information - architecture information, environment information, drawing information - with process consisted in professional practice of design and adjust each process and sequence. Also, this study suggest process that applying BIM tools in this work as the basis frame.

• 한국디지털건축인테리어학회논문집
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• 제1권1호
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• pp.39-45
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• 2001

The purpose of this study is to suggest the possibility which can use as instrument of design by CAD system. And it proposes how makes 3D object model through 2D Drawings in Design process. This study has review the 'Study Drawing' in design process, and application method of CAD as the Architectural Design Integration System. The Architecture can work in ani of the traditional 2D representations as well as in 3D and immediate visual feedback of his work in isometric and perspective projrctions.

• 대한전기학회논문지
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• 제45권3호
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• pp.444-450
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• 1996

A digital hardware architecture for artificial neural network with learning capability is described in this paper. It is a modified hardware architecture known as HANNIBAL(Hardware Architecture for Neural Networks Implementing Back propagation Algorithm Learning). For implementing an efficient neural network hardware, we analyzed various type of multiplier which is major function block of neuro-processor cell. With this result, we design a efficient digital neural network hardware using serial/parallel multiplier, and test the operation. We also analyze the hardware efficiency with logic level simulation. (author). refs., figs., tabs.

• 디자인학연구
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• 제16권2호
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• pp.171-178
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• 2003

현대 디지털 테크놀러지가 만들어내는 시각적, 체감적, 사회적 상황은 급진적 모더니스즘 건축가들의 작품 활동의 배경이 되고 있으며, 그들의 공간 조형 행위는 기존의 공간에서 받아오던 물성과 중력의 속박으로부터 해방되는 또 하나의 가능성을 제시해 주고 있다. 디지털 테크놀러지를 이용한 건축 디자인 프로세스는 다양하게 시도되고 있으며, 탈장소성, 비선형적 공간, 공간의 유동성, 비유클리드적 기하체계 등, 몇 가지 특성으로 정리되고 있다. 대부분의 디지털 건축에 관한 연구는 개념적인 측면에 치중되어 디자인 비평과 평가에 상당한 오류를 범할 수 있는 소지를 제공하고 있다. 디지털건축디자인은 컴퓨터라고 하는 고도의 테크놀로지를 기반으로 하고 있으므로 당연히 기술적 모델 스터디 측면에서 프로세스의 유형을 분류하여 볼 필요가 있다. 본 연구에서는 디지털 건축에서 공통적으로 뚜렷이 나타나는 비선형적 형태의 발생과정을 분석하여, 디지털 건축디자인을 유형별로 분류, 규명여 디자인의 가치판단과 비평의 이론적 배경을 구축하는데 목적이 있다.

• 한국항해항만학회지
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• 제46권5호
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• pp.458-470
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• 2022

As the 4th industrial revolution progresses, the application of several cutting-edge technologies such as the Internet of Things, big data, and mixed reality (MR) in relation to autonomous ships is being considered in the maritime logistics field. The aim of this study was to apply the concept of a digital twin model based on Human Machine Interaction (HMI) including a digital twin model and the role of an operator to a ship. The role of the digital twin is divided into information provision, support, decision, and implementation. The role of the operator is divided into operation, decision-making, supervision, and standby. The system constituting the ship was investigated. The digital twin system that could be applied to the ship was also investigated. The cloud-based digital twin system architecture that could apply investigated applications was divided into ship data collection (part 1), cloud system (part 2), analysis system/ application (part 3), and MR/mobile system (part 4). A Mixed Reality device HoloLens was used as an HMI equipment to perform a simulation test of a digital twin system of an 8 m battery-based electric propulsion ship.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2008년도 하계종합학술대회
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• pp.181-182
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• 2008

In this paper, an cost-effective system architecture is proposed to implement digital predistortion scheme for linearizing the PA amplifing TDD wideband signal. To make digital predistorted signal for compensating nonlinearity of PA, a dedicated ADC and a frequency-down converter are necessary. Proposed scheme is based on the TDD feature that the RF receiver frontend is idle state during the downlink signal processing time and utilize them to make the digital predistorted signal for PA.