8 research outputs found

    (The)Construction and application of the trademark dilution theory

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    학위논문(박사)--서울대학교 대학원 :법학과,2006.Docto

    컴퓨터 사용자 인터페이스의 法的 保護

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    학위논문(석사)--서울대학교 대학원 :법학과,2003.Maste

    실시간 분산처리에 적합한 Ring Network 의 구현

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    학위논문(석사) - 한국과학기술원 : 전기 및 전자공학과, 1987.2, [ [iii], 62 p. ]A microcomputer communication network suitable for real-time applications is developed by using inexpensive, programmable data control chip. The communication network is characterized by open-ring structure, message train, and centralized control. Open-ring structure coming from D-Net, eliminates overhead due to message removal in conventional closed ring. At each token turn-around, message train is made by multiple accessing of attached nodes. Channel efficiency can be enhanced by multiple accessing. Centralized control makes protocol design simple. Access ordering is sequentialized with round robin by using explicit token. Channel access time is bounded with finite limit by this collision-free protocol. This boundness is shown in simulation result. This feature is very important for real-time application.한국과학기술원 : 전기 및 전자공학과

    이동 패킷통신망에서의 ICMA/CD 프로토콜의 성능개선방법 및 성능분석

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    학위논문(박사) - 한국과학기술원 : 전기 및 전자공학과, 1991.2, [ viii, 116 p. ]There have been a great deal of interests in packet mobile radio networks but CSMA/CD protocols used in fixed-terminal radio communication or LAN is not adaptable practically. A centrally-controlled multiple access scheme, known as idle-signal casting multiple access with collison detection (ICMA/CD), was proposed to solve this problem. The performance of ICMA/CD protocols is greatly affected by the packet detection dealy which is generally large tnan that of drdinary LAN or fixed-terminal radio communications. Our improving methods are baaed on a reduction of the large packet detection delay``s and a regulation of traffic load in accordance to channal state histories. Novel channel access scheme (ICMA/CD-R) is introduced to avoid collisions during the packet detection delay and another channel access shceme (VT-ICMA/CD) is adapted for a regulation of traffic load by exploiting the virtual-time protocol concept. Above two channel access algorithms can be used independently for reducing packet failure probability and enhancing the channel capacity. Finally, a combined algorithm (VT-ICMA/CD-R) of above two algorithms is proposed to produce a more improved performance by taking advantage of the merits of ICMA/CDR and VT-ICMA/CD. These algorithms are analyzed in terms of channel capacity, packet failure probability (PFP), average number of reschedulings (ANR), packect dealy and channel stability, compared to existing ICMA/CD protocls. The copmparisons show that proposed algorithms are superior to those of the existing algorithms in above-mentioned performace measures and are less affected by the packet detection delay. The ICMA/CD protocols can be sued for real-time applications such as mobile a lower average rescheduling number, a lower packet delay and a better stability more approximates the first-come-first-service(FCFS) rule. These properities are especially for mobile phone system where voice packets are to be transmitted without being descarded and in the or...한국과학기술원 : 전기 및 전자공학과
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