무선 센서 네트워크에서 센서 노드의 에너지 예측을 위한 시뮬레이터 개발

강경현(Kyung Hyun Kang),김수정(Sujeong Kim),정광수(Kwangsue Chung) 한국정보과학회 2010 한국정보과학회 학술발표논문집 Vol.37 No.2B

무선 센서 네트워크에서 센서 노드는 배터리 파워로 동작하기 때문에 사용할 수 있는 에너지가 한정되어 있다. 따라서 무선 센서 네트워크를 구성할 때 각 센서 노드의 에너지 소비를 정확하게 예측하는 것이 안정적인 네트워크 운용을 위해 중요한 고려 요소가 될 수 있다. 본 논문에서는 센서 노드의 에너지소비 예측을 위한 시뮬레이터를 제안하였다. 제안하는 시뮬레이터는 데이터 송, 수신에 따른 에너지 소모와 하드웨어에서의 에너지 소모를 반영하여 구현하였기 때문에 센서 노드의 수명을 정확하게 예측할 수 있다.

『송계원명이학통록(宋季元明理學通錄)』의 구성과 의의

강경현 ( Kang Kyung-hyun ) 인하대학교 한국학연구소 2014 한국학연구 Vol.0 No.32

SongGyeWonMyungLiHakTongLok(『季元明理學通錄』) is a record of the sayings and doings of approximately 560 confucian scholars from the Southern Song, through to the Won and Myung. Yi Hwang gave a title of Lihak(理學) to their study and thought the confucian scholars during that period pursue the course of learning advocated by Chu Hsi(朱熹). Therefore he tried to list them starting with Chu Hsi, and mainly focused on understanding Chu Hsi’s life, doctrines, and his pupils. Yi Hwang’s important point of compiling the SongGyeWonMyungLiHakTongLok is found in the chapter of “Chu Hsi” and “Chu Hsi’s pupils”. Considering the passages quoting from Chu Hsi’s works, we can find that Yi Hwang’s emphasis is on Chu Hsi’s explanation of Jing(敬) as a way of self-cultivation. Accordingly, SongGyeWonMyungLiHakTongLok shows that Yi Hwang organizes the theory of self-cultivation centering on Jing. This observation provides a comprehensive view on understanding Yi Hwang’s philosophy based on the theory of self-cultivation.

혈연 세습에 대한 유학의 이해

강경현 ( Kang Kyung Hyun ) 한국공자학회 2024 공자학 Vol.52 No.-

The issue of the legitimacy of a ruler, who possesses the ability and responsibility to implement benevolent governance(仁政) in Confucian states, is a fundamental concern in understanding Confucian societies. In this article, I examine the rationale of Confucian states that traditionally sought the legitimacy of a ruler through hereditary succession, focusing on the interpretation of the relationship between ancestors and descendants. Justified through Mencius' concept of 'resemblance(肖)' and Zhu Xi's philosophy of 'homogeneous energy(氣)', hereditary succession was a way to ensure the continued implementation of benevolent governance through the sharing and transmission of Confucian values.

조선시대 경연에서 『서경』 「우공」편 강독의 의미

강경현 ( Kang Kyung Hyun ) 한국공자학회 2022 공자학 Vol.48 No.-

The Classics Mat of Joseon is an institution where the monarch and his subjects met to read Confucian Classics together, discuss the contents, thereby sharing the ideology and ideals to build a country based on Confucian values. The Book of Documents records the exemplary Confucian monarchs and subjects, and is also a major textbook of The Classics Mat in Joseon. In this book, Joseon's monarchs and subjects find the core principles of Confucian politics: self-cultivation, benevolent politics, and co-government by the ruler and the subject. In the Classics Mat of Joseon, the Book of Documents is intensively discussed during the reign of King Injo and King Hyojong, and in particular, the “Tribute of Yu” chapter began to be read in earnest. In the seventeenth century, when the implementation of the Daedong Law was proposed to solve the abolition of the public payment system, the “Tribute of Yu” is discussed again in The Classics Mat and understood as the basis for the tax system. Furthermore, in Joseon's Classics Mat, the “Tribute of Yu” is interpreted as an ideal Confucian political example: It is based on the minds of the king and his servants who are oriented towards benevolent politics. To be specific, from this ideal they see territorial development, geographic research, industrial proposals and promotions, and the realization of the “fertility of the land and the comfortable life of the people.” The way they read the chapter in question provides an example that the Classics Mat of Joseon was a place to read the Confucian Classics with statecraft in mind.

무선 센서 네트워크에서 혼잡 패턴을 고려한 전송률 조절 기법

강경현(Kyung Hyun Kang),정광수(Kwangsue Chung) 한국정보과학회 2010 정보과학회 컴퓨팅의 실제 논문지 Vol.16 No.12

이벤트 기반 무선 센서 네트워크에서 주기적인 센싱 데이터에 비해 높은 전송률과 우선순위를 갖는 이벤트 데이터가 병목 구간에 집중되면 네트워크 혼잡이 발생한다. 혼잡이 지속되면 대부분의 데이터가 손실되는 네트워크 붕괴 현상이 나타난다. 전송률 조절 기법은 이러한 네트워크 붕괴 현상을 막기 위한 해결책 중 하나이다. 본 논문에서는 무선 센서 네트워크에서의 혼잡 제어를 위해 각 노드에서 혼잡 패턴에 따라 자식 노드의 전송률을 조절하는 기법을 제안한다. 실험을 통해 제안하는 기법이 효과적으로 혼잡을 제어하고, 기존의 전송률 조절 기법들보다 더 많은 이벤트 데이터를 전송함을 확인하였다. In event-driven wireless sensor networks, network congestion occurs when event data, which have higher transmission rates than periodic sensing data, are forwarded to bottleneck links. As the congestion continues, congestion collapse is triggered, so most of pacpackets from source nodes are failed to transmit to a sink node. Rate control schemes can be a solution for preventing the congestion collapse problem. In this paper, a rate control scheme that each node controls child node’s data rate based on congestion patterns is proposed. Experiments show that the proposed scheme effectively controls network congestion and successfully transmits more event data packets to a sink node than existing rate control schemes.

조선시대 經筵에서 『尙書』 강독의 의미 - 조선 전기 경연 자료를 중심으로

강경현 ( Kang Kyung-hyun ) 퇴계학연구원 2022 退溪學報 Vol.151 No.-

The Book of Documents, which records the era when Confucian ideal politics was embodied, sets an example for holy monarchs and wise subjects as ideal participants in Confucian politics by including the words and actions of great kings and subjects at the time. The Classics Mat(經筵, also interpreted as the loyal lecture) of Joseon, where The Book of Documents was read, has the following meanings. First of all, the rulers and subjects of Joseon shared the human understanding of Confucianism that each has the potential to become a good ruler and a wise servant, and at the same time, the possibility of being swayed by desires. They also identified the goal of the benevolent politics, and thought about the institutional orientation of co-governance by the ruler and the subject to realize it. In other words, the Classics Mat in Joseon was a place to think about the qualifications and roles of the two moral political actors of the royal government participating in real politics. The rulers and subjects of Joseon discussed the ideal of confucian politics in the Classics Mat, and the reading of The Book of Documents was a method of realizing confucian benevolent politics and co-government by continuously confirming it.

한국 주자학 연구의 두 시선 -철학자 주희 혹은 유학자 주희-

강경현 ( Kang Kyung-hyun ) 인하대학교 한국학연구소 2018 한국학연구 Vol.0 No.49

Since the modern age, the research on the study of Zhu-Xi in Korea has been deeply concerned with the interpretation of Korean tradition. This is because Joseon, which was faithful to the Zhu-Xi studies, is one of the points to be paid attention in order to understand the present and past of Korea. However, the research on the study of Zhu-Xi, which constitutes the main ideological and cultural foundation of tradition, have progressed in the color of Western philosophical interpretation strongly since the modern age. This approach is due to the historical experience of Korea, which is a severance of tradition, and simultaneously it is the method chosen to explain the implications of the study of Zhu-Xi in the present thoughts and language. On the other hand, the research on the study of Zhu-Xi in Korea is centered on the subject considered to be a traditional issue of Confucianism. In other words, the research on the study of Zhu-Xi in Korea explored the universal meaning of the Zhu-Xi studies through philosophy and established the identity of the Zhu-Xi studies within Confucianism. The purpose of this research is to ask questions that can be raised from the point of view of traditional Confucianism regarding the two viewpoints of the research on the study of Zhu-Xi since the modern age. Firstly, when the study of Zhu-Xi is analyzed in the perspective of the Western philosophy, it would cause the gap with the issues of Confucianism. Secondly, even if interpreting the study of Zhu-Xi within the range of tradition of Confucianism as much as possible, it is still possible that some of the important issues of Confucianism are missing. The understanding of the study of Zhu-Xi will be clearer by focusing on the traditional Confucianism, and from this point of view, the research on the study of Zhu-Xi in Korea will be the basis of a continuous and consistent understanding of Korea's past and present, which regarded Zhu-Xi studies of Joseon Dynasty as the main traditional resource.

퇴계(退溪) 이황(李滉)의 「天命圖」에 대한 분석 -天命圈을 중심으로-

강경현 ( Kyung Hyun Kang ) 퇴계학연구원 2012 退溪學報 Vol.131 No.-

This paper attempted to analyze T`oegye Yi Hwang(退溪 李滉, 1501~1570)`s the Diagram of the Mandate of Heaven(「天命圖」: Chunmyungdo) through the examination of T`oegye`s modification of the existing the Diagram of the Mandate of Heaven. T`oegye made a few core modifications to the Diagram of the Mandate of Heaven. Specifically, he expressed his view of the Mandate of Heaven through repositioning the circle of the Mandate of Heaven(天命圈) and refining its element`s meaning. The circle of the Mandate of Heaven obtains the meaning of the Lord on High(上天·上帝: sangchun·sangje)`s mandate by taking higher position on the Diagram of the Mandate of Heaven. And the circle of the Mandate of Heaven also represents the circle of wondrously uniting and consolidating li and gi(理氣妙凝) on the Diagram of the Supreme Ultimate(「太極圖」: Taegeukdo). Accordingly it takes a significant role in creating all things which have the original nature of benevolence(仁), righteousness(義), propriety(禮), wisdom(智) and the form and body. These considerations suggest that T`oegye`s modification of the existing the Diagram of the Mandate of Heaven shows the his understanding of the circle of the Mandate of Heaven. He thought that the circle of the Mandate of Heaven represents a root of creating concrete entities which ought to carry out virtuous conduct and also has the meaning that the process of creating all things is regarded as intention and direction of the Lord on High.

통합 ESS 전력공유 모델 개발

강경현(Kyung-hyun Kang),고재하(Jael-Ha Ko) 대한전기학회 2023 대한전기학회 학술대회 논문집 Vol.2023 No.4

무선 센서 네트워크에서 Bounded Delay를 보장하는 Adaptive Back-off 기법

강경현(Kyung Hyun Kang),송병훈(Byunghun Song),정광수(Kwangsue Chung) 한국정보과학회 2009 한국정보과학회 학술발표논문집 Vol.36 No.1D

모니터링 기반의 무선 센서 네트워크에서는, 각 노드로부터 수신된 데이터의 양과 지연 시간의 차이를 줄이는 것이 시스템 설계에서 중요한 요소 중 하나이다. 대부분의 무선 센서 네트워크 응용은 트리 구조의 멀티 홉 통신으로 이루어지기 때문에 네트워크 가장자리에 놓인 노드는 비교적 큰 데이터 지연 시간을 갖는다. 따라서, 본 논문에서는 싱크로부터 멀리 떨어져 있는 노드에게 데이터 전송 확률을 높여주는 Adaptive Back-off 기법을 제안하였다. Adaptive Back-off 기법은 센서 노드가 대부분의 데이터를 Bounded Delay 시간 안에 싱크로 전달하도록 보장한다. 실험을 통해, 제안하는 기법은 데이터의 최대지연 시간을 줄이고, 데이터 전송의 공정성을 향상시킨다는 것을 확인하였다.