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김창주(Chang-Joo Kim),강영흥(Young-Heung Kang),계경문(Kyung-Moon Kye),김영수(Young Soo Kim),박덕규(Duk-Kyu Park),박석지(Seokji Park),배정기(Jung-kee Bae),윤현보(Hyun-Bo Yoon) 한국전자파학회 2013 한국전자파학회논문지 Vol.24 No.8
본 논문에서는 전파기술의 발달에 따른 전파 정책의 변화를 분석한다. 특히 주파수 공동사용 기술 및 정책의 분석을 통하여 관련 전파법에 누락되어 있는 주파수 공동사용에 대한 정의를 제정하고, 면허권에 따른 주파수 공동사용을 분석한다. 또한, 대가 할당에 의한 배타적 주파수 이용권만을 규정한 전파법의 주파수 이용권의 범위를 주파수 할당, 지정, 사용승인으로 확대하고, 전파법 체계를 개정할 것을 제안한다. In this paper, we analyze the paradigm shift of radio policy with the development of radio technology. In particular, we propose the definition of spectrum sharing, which is now omitted in the Korean radio law, and analyze the category of spectrum sharing depending on the licensing regime. Also we propose to extend the spectrum usage right, which defines only exclusive usage rights by spectrum auction in the Korean radio law, to all the stations which use radio spectrum and to restructure the Korean radio law.
PSTN과 PSDN을 연결한 데이터 통신망의 회선할당에 관한 연구
김병무,이영호,김영휘,김유환,박석지,김주성 한국경영과학회 1998 한국경영과학회 학술대회논문집 Vol.- No.1
In this paper, we seek to find an optimal allocation of link capacity in a data communication network. The architecture of the data communication network considered in the study is an online-service network based on public switched telephone network(PSTN) and packet switched data network(PSDN). In designing the architecture of the network, we need to deal with various measures of quality of service(QoS). Two important service measures are the call blocking probability in PSTN and the data transfer delay time in PSDN. Considering the tradeoff between the call blocking probability and the data transfer delay time in the network, we have developed the optimal link capacity allocation model that minimizes the total link cost, while guarantees the call blocking probability and the data transfer delay time within an acceptable level of QoS. This problem can be formulated as a non-linear integer programming model. We have solved the problem with tabu search and simulated annealing methods. In addition, we have analyzed the sensitivity of the model and provided the insight of the model along with computational results.