• Journal of KIISE:Information Networking
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• v.29 no.2
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• pp.147-155
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• 2002

Seamless connection can be a good solution to reduce processing delays in interworking points, a possible big burden to the data transmission in Internet. This paper, therefore, will present several interworking methods which can minimize the delays through seamless connections in interworking between MPOA networks, usually ATM-LANs, and MPLS networks, mainly Internet backbones. We compare characteristics of those networks, propose requirements for interworking, and describe three Interworking methods. Proposed Interworking methods reduce end-to-end transmission delay for seamless connection between ATM VC and LSP, as decreases the number of IP lookup processing in LER. We describe detailed process and characteristic of each interworking method, And we analyze and compare end-to-end delay, using Jackson's network theorem, of proposed interworking methods.

• Proceedings of the IEEK Conference
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• 2000.07b
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• pp.719-722
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• 2000

It is essential to develop the internetworking strategies between the OBP satellite B-ISDN and the terrestrial B-ISDN for the economical and efficient implementation of the future network infrastructure. We have considered the implementation issues of the emerging B-ISDN, especially interworking strategies of the terrestrial B-ISDN with the OBP satellite B-ISBN. We proposed interworking model between terrestrial B-ISDN and OBP satellite B-ISDN NNI signaling protocol, and describes the design and verification of the interworking protocol. For the verification, interworking protocol is modeled by Predicate/Action Net derived from Petri Net and the designed model is analyzed by reachability tree. Using Unix socket, the verified interworking protocol is implemented in two workstations and implemented interworking protocol is tested by local test method which is outstanding in error detection and recommended by ISO.

• Journal of the Korean Institute of Telematics and Electronics A
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• v.33A no.10
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• pp.48-60
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• 1996

This paper focuses on the necessities of interworking and dervation of the requirements of interworking system for interworking between 64 Kbps based N-ISDN (narrowband ISDN) and B-ISDN(broadband ISDN). Furthermore, the design and the implementation of IWF (interworking function) are presentd. We analyze two ISDN signalling systems, and propose the architecture of interworking system. And then we make the baisc call procedure model between N-ISDN and B-ISDN, and verify the dynamic behaviors through the reachability tree of petri net. IWF is designed and implemented for transforming the differences between the two signalling systems. The operational confirmity of th eimplemented program was confirmed by the local test method. The performance of IWF was evaluated throguh the simulation language SLAM-II. As the result of evaluation shows, we confirm that the processing delay is maintained within 3 ms under the utilization 0.9.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.17 no.8
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• pp.823-836
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• 1992

Computer and communication network of the future will be the ISDN that enable various services. And now, it Is very Important to study the relevalent techniques to develop Interworking methods between existing computer network and ISDN The purpose of this paper Is to provide necessary basic He search results on the Interworkting method between local area network (LAN) and ISDN. For Interworking, we analyze the characteristic of existing LAN and ISDN and discuss considerations of Interworking and suggest the interworking method for CO and CL services. Also. we construct logical gateway for Interworking betwen LAN and ISDN and make formairnodeling of gateway using Petri net and verify the correctness of protocol with reachability tree. Research results should be helpful In designing and Implementing gateway between i()cal computer network and I SDN

• 한국ITS학회:학술대회논문집
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• 2005.11a
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• pp.67-70
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• 2005

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.38 no.10
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• pp.10-17
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• 2001

For high-speed Internet services, considerations on interworking methods are required for interworking between networks with different technologies. lnterworking and structures in interworking point nodes can affect on transfer efficiency. This paper proposes interworking procedures and functions of the edge routers for overhead reduction in MPOA-MPLS networks. The MPLS networks can be based on ATM technology. Therefore, we consider ATM seamless connections for the interworking and compare the proposed method with that without seamless connection. We perform computer simulations to get both of the transfer delays and throughputs for the comparison., we describe required interworking functions and operations in the edge routers.

• Journal of Korea Society of Digital Industry and Information Management
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• v.11 no.4
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• pp.25-31
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• 2015

Smart healthcare environments which merge medical and IT technology are getting ready for the third generation centering EHR from current second generation. As a basic technology for the introduction and activation of EHR systems it requires heterogeneous network interworking techniques between various wired and wireless medical devices. Interworking technology for heterogeneous network among various medical devices is needed to introduce EHR system. The heterogeneous network interworking technology is needed for construction of a reliable data system to convert each of unstructured data into structured data. Therefore, in this paper, we identify the domestic and international trends of smart medical field and analyze the characteristics of wired and wireless communication technology that is used in a heterogeneous network. and also suggest requirements needed for interworking technology and provide interworking technology based on them. we expect that proposed method which is designed for smart healthcare environments would provide a basic architecture needed for third smart medical technology generation.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2001.10a
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• pp.93-96
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• 2001

For interconnecting PSTN and IP Networks, We made a comparative analysis of signaling interworking and also studied SS7 Signaling process as a method for signaling interworking for using the establishment of PATN/IP network and seting up a phone call. As a methode of signalning interworking for linking an intelligent net-service between PSTN/IP Networks, we made researches of the merits and demerits about the access of INAP/SS7 using PSTN SCP and the call-routing of intelligent net-service using PSTM SSP in an IP network. We made a study of the protocol stack in IETF SIGTRAN as the realization for this

• Journal of the Korean Professional Engineers Association
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• v.29 no.3
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• pp.94-104
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• 1996

When Broadband Integrated Services Digital Network(BISDN) becomes commercially available In public network, conventional Local Area Network(LAN)s will still be in use. The first wide spread application for B-ISDN will be the interconnection of LANs. The equipment providing the connection between the LAN and the BISDN will be given the general name Inter Working Unit(IWU). We addresses the congestion problem of many interworking issues. In this paper, Our study is concentrated on applying connectionless network protocol for interworking. We suggest a rate control method in the network layer to prevent a buffer overflow in the IWU. Since this rate control method can be applied to prevent buffer overflow in a congested IWU, We investigate the use of rate control to solve congestion problems of IWU and parallize network layer with rate control to lessen the congestion problem in IWU.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.6
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• pp.2851-2858
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• 2011

The schedule management in construction project have been performed independently by two method, WBS base management and CBS based management, However, the integrated management model is needed according to efficiency of construction project management and introduction of new EVMS system of KOREA government. For this purpose, interworking database system is designed through efficient modeling of WBS based management data and CBS based management data and relation establishment between entities in this paper. WBS based management DB consists of 4 entities and CBS based management DB consists of 3 entity and one of the 4 WBS DB entities is used to play interworking role between WBS and CBS, Also, attributes of all entities are well defined so that data consistency, integrity and newest are guaranteed. The designed interworking database model was realized using Nex-Pert Pro and the efficiency of data interworking was proved.