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역방향 링크에 대한 디지털 셀룰러 CDMA 시스템의 용량 평가
박용서,Park, Yong-Seo 한국음향학회 1995 韓國音響學會誌 Vol.14 No.1
서비스 영역이 중심 셀로부터 3개의 궤도가 포함하고 있는 37개의 6각형 셀의 역방향 링크(이동체-기지국)에 대한 디지털 셀룰러 CDMA의 용량을 컴퓨터 시뮬레이션에 의하여 구하였다. 채널에는 shadow페이딩이 존재하며, 시스템은 이상적으로 전력제어가 이루어지고 있다고 가정하였다. 본 논문에서는 전파손실계수와 음성통화율 그리고 인접 셀의 통화량을 고려한 CDMA 시스템의 용량 평가를 통하여 CDMA 시스템의 용량은 전과손실계수가 증가하고 음성통화율이 감소함에 따라 증가하며 $\gamma=4일$ 때 아날로그 셀룰러 FM/FDMA와 디지털 셀룰러 TDMA의 용량에 비하여 각각 15배와 5배 가량 크며 인접하고 있는 셀의 통화량에 매우 민감하다는 결과를 얻었다. The capacity of a digital cellular CDMA system is evaluated by computer simulation for reverse link (mobile-to-base) with 37 hexagonal cells including 3 rings from a center cell. It is assumed that the channels have shadow fading and the system is ideally power controlled. In this paper the capacity of CBMA system is evaluated for various propagation exponents, voice activity factors and neighboring cell traffics. The following results are obtained. The capacity of CDMA system is increased according to the increase of the propagation exponents and the decrease of the voice activity factors. Its capacity is about 15 and 5 times larger thari that of analog cellular FM/FDMA and digital cellular TDMA for $\gamma=4$ respectively, and is very sensitive to the neighboring cell traffics.
철도중심 광역 복합환승센터의 공간 구성적 특성에 관한 연구 - 일본 오사카 스테이션 시티를 중심으로 -
박용서 대한건축학회지회연합회 2017 대한건축학회연합논문집 Vol.19 No.2
Today, When Intermodal Transit Center(ITC) is appeared for the urbanistic central function and combining the transit transfer function. Between these two combination of problems, it is concluded to the problem about the method of the intermediate-zone. Presently, Examine about the problem with the urban space which is appeared in the ITC of the Railroad Station Oriented in Korea, comparing with foreign countries, Korea just focused on the commercial development. Therefore, bring in 'method of the intermediate-zone' as the element of the integration. So this study will pays attention to the Mixed- use Development of the ITC of the Railroad Station Oriented to Japan as the learning model. we can review for characteristice of the intermediate-zone appear in Mixed-use Development with these case study. On the base of this study, it can contribute to the development policy for the urbanism integration with the ITC in Korea. and also it can be in charge of the reference the role.
메디앙스 이론의 고찰을 통한 근대성에 내재하는 장소적 문제로서 추상성 발생 요인에 관한 연구
박용서,Park, Yong-Seo 한국주거학회 2010 한국주거학회 논문집 Vol.21 No.5
The trend of abstract expressions has become one of the fundamental causes of the problems relating to a sense of place in modern architecture. This trend began in earnest after the era of modernism, caused by the effect of modern dualism. Before analyzing the problems of the modern trend of abstract expressions and sense of place, a fundamental review of the establishment of human environments is necessary. In this context, this study deals with the principles of the establishment of an environment based on the logic of projection between human beings and milieu, through the concept of mediance by Augustin Berque, and based on this, causes of adverse effects on the establishment of environments in modernism were verified. In addition, the last section covers the conceptual supplements required in order for the concept of mediance to become practical, overcoming its limitation of being simply theoretical. Through this analysis on the concept of mediance, it is realized that a genuine sense of place can be achieved only when architecture moves beyond the individual dimension as a simply physical object, and instead plays a role as a socially sustainable community, embracing the people and unique objects therein.