• Title/Summary/Keyword: Protocol mapping

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Virtual Queue Based QoS Layered Vertical Mapping in Wireless Networks

  • Fang, Shu-Guang;Tang, Ri-Zhao;Dong, Yu-Ning;Zhang, Hui
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.8 no.6
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    • pp.1869-1880
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    • 2014
  • Wireless communication is one of most active areas in modern communication researches, QoS (Quality of Service) assurance is very important for wireless communication systems design, especially for applications such as streaming video etc., which requires strict QoS assurance. The modern wireless networks multi-layer protocol stack structure results in QoS metrics layered and acting in cascade and QoS metrics vertical mapping between protocol layers. Based on virtual buffer between protocol layers and queuing technology, a unified layered QoS mapping framework is proposed in this paper, in which we first propose virtual queue concept, give a novelty united neighboring protocol layers QoS metric mapping framework, and analysis method based on dicerete-time Markov chain, and numerical results show that our proposed framework represents a significant improvement over previous model.

Research on Protocol Conversion Gateway based on IEEE1815.1 (IEEE 1815.1 기반 이기종 프로토콜 변환 게이트웨이 기술 연구)

  • Lee, Seokjun;Kwon, Sungmoon;Shon, Taeshik;Park, Sungwan
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.26 no.5
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    • pp.1201-1209
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    • 2016
  • While the legacy electric grid evolving into the smart grid, various communication standards have been used for interoperability between many components. In this situation, the needs emerged for protocol conversion and mapping method for connecting the outside components to the operation center. In this paper, according to the surge of IEC 61850-based substation automation, we studied the protocol conversion gateway for linking legacy DNP3-based control center and IEC 61850-based substation automation. This paper is based on the IEEE 1815.1 standard for the protocol mapping. We suggested the direction of development the gateway and developed prototype for evaluate the proposed gateway. Also, we bring up a security problem and give a solution.

A BGP based Distributed Mapping System for Id/Loc split (Id/Loc split 를 위한 BGP 기반 매핑 시스템)

  • Angel, Mukankunga Bisamaza;Hong, Choong Seon
    • Proceedings of the Korea Information Processing Society Conference
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    • 2010.11a
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    • pp.1050-1052
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    • 2010
  • Locator and Identifier Split is considered as the solution to the scalability problem Internet is facing today. The separation approach of Locator and Identifier requires a third party called mapping system. The mapping system enables the inter-domain routing between two different edge networks. The design of this third party has generated many proposals, among them one approach use Border Gateway Protocol (BGP) for effective mapping information updates distribution. In this paper, we take advantage of this approach by considering the scalability in term of mapping information storage. Our goal is to provide scalability in term of mapping information storage as well as effective mapping information updates distribution.

A Propagated-Mode LISP-DDT Mapping System (전달모드 LISP-DDT 매핑 시스템에 관한 연구)

  • Ro, Soonghwan
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.65 no.12
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    • pp.2211-2217
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    • 2016
  • The Locator/Identifier Separation Protocol (LISP) is a new routing architecture that implements a new semantic for IP addressing. It enables the separation of IP addresses into two new numbering spaces: Endpoint Identifiers (EIDs) and Routing Locators (RLOCs). This approach will solve the issue of rapid growth of the Internet's DFZ (default-free zone). In this paper, we propose an algorithm called the Propagated-Mode Mapping System to improve the map request process of LISP-DDT.

Integration Mechanism of SDL and CORBA System using Method/Signal Mapping Rules (메소드/시그널 매핑을 이용한 SDL과 CORBA 시스템의 통합 방법)

  • Paik, Eui-Hyun;Huh, Jae-Doo;Lee, Hyeong-Ho
    • The KIPS Transactions:PartA
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    • v.9A no.4
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    • pp.479-484
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    • 2002
  • This paper presents the model that integrates an SDL system and a CORBA system using mapping rules between method and signal for developing embedded systems connected with internet. In order to support communication between the two different systems (SDL and CORBA), it is essential to secure the conversion interface between SDL communication protocol and CORBA communication protocol. In this paper, IDL is adopted for the communication interface and the conversion of the communication protocol between the two systems, and the IDL compiler automatically generates the interface for protocol interoperability. The proposed model adopts middleware on the subpart of the SDL based legacy system, and hence, supports the service on the distributed system, regardless of the environment and location of the server system.

Mapping of QoS Information Elements and Implementation of Rs/Rw Interface Resource Control Protocols in NGN (NGN에서의 QoS 정보요소 매핑 및 Rs/Rw 인터페이스의 자원제어 프로토콜 구현)

  • Jeon, Jin-Su;Kim, Hae-Hyun;Cha, Young-Wook;Kim, Choon-Hee;Jeong, You-Hyeon
    • The KIPS Transactions:PartC
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    • v.15C no.5
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    • pp.429-438
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    • 2008
  • NGN is a packet-based converged network to support session and non-session services in QoS-enabled broadband transport network. QoS based resource control must be defined to support differentiated services for various network users in NGN. We designed and implemented DIAMETER protocol as the Rs interface, and also defined mapping rules between DIAMETER information elements and SDP(Session Description Protocol) attributes for QoS based resource control in NGN. We selected and implemented DIAMETER protocol among alternate resource control protocols in ITU-T as the Rw interface because of simple interworking method with Rs interface and adequate AAA functionality. We defined mapping rules of messages and information elements between Rs and Rw interfaces for resource control from a service layer to a transport layer. Based on the mapping rule of QoS information elements and the interworking method between Rs and Rw interfaces, we built up a test-bed that support differentiated delivery services.

Edge Router Selection and Traffic Engineering in LISP-Capable Networks

  • Li, Ke;Wang, Sheng;Wang, Xiong
    • Journal of Communications and Networks
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    • v.13 no.6
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    • pp.612-620
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    • 2011
  • Recently, one of the problems with the Internet is the issue of scalability. To this end, locator/identifier separation protocol (LISP), which separates end-system identifiers and routing locators, has been proposed as a solution. In the LISP deployed network, the ingress and egress nodes of inter-AS traffic is determined by edge router selection (ERS) and endpoint identifier-routing locator mapping assignment (ERMA). In this paper, joint optimizations of ERS and ERMA for stub networks with and without predetermined link weights are studied and the mixed integer linear programming (MILP) formulations for the problems are given. To make the problem with optimizable link weights tractable, a revised local search algorithm is also proposed. Simulation results show that joint optimization of ERS and ERMA enables better network performance.

Development of the Gateway in IEC61850 based Substation for Smart Grid (스마트 그리드용 IEC61850 기반 변전소에서의 게이트웨이 개발)

  • Yun, Seok-Yeul
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.7
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    • pp.1324-1330
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    • 2011
  • This paper presents the development of gateway for smart grid for the interoperable communication between IEC 61850 station leveled devices and one of legacy Modbus, DNP3, and IEC60870-5-101/104/103 communication protocol devices of bay level in substation or for the exchange of information between IEC 61850 substation and SCADA control center. The data-mapping model is designed for the exchange of information and the gateway configuration tool is developed for generating meta-data based on XML Schema. this paper is mostly concerned with the design and realization of gateway system for the interoperable data communication between a legacy protocol device and IEC61850 based devices or systems.

Development of an IoT System Based on the oneM2M Communication Protocol (oneM2M 통신 프로토콜 기반 사물인터넷 시스템 개발)

  • Park, Kee-Hyun;Lee, Jong-Hwi;Woo, Min-Woo;Park, Joon-Suu
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.6 no.3
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    • pp.41-49
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    • 2016
  • In this paper, an IoT system which is increasingly popular in these days is developed. Among various international standards on the area, one M2M communication protocol is used in the system. The 0neM2M-based IoT system consists of ADN-AE modules and CSE modules. The ADN-AE module provides applications of various services. It also monitors a CSE module. The CES module is a platform that provides common services which should be provided to various AEs in an IoT system. The CSE module consists of a Network Manager module, a Message Handler module, and a Resource Manager module. The Network Manager module controls oneM2M communication and data flow in the system. The Message Handler module processes transmitted messages and the Resource Manager module manages the Resource Tree. The resource tree stores information of the objects to be managed in the system. Also, internal data flow and protocol mapping in the modules are explained.

Design and Implementation of a Generic Interface Adaptor for Network Management based on TINA (TINA 체계의 망관리를 위한 Generic Interface Adaptor의 설계 및 구현)

  • 이계환;김영탁
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.26 no.10A
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    • pp.1717-1726
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    • 2001
  • 본 논문에서는 CORBA(Common Object Request Architecture)기반의 TINA(Telecommunications Information Networking Architecture) 분산체계에서 통신망 하부 장비들이 SNMP(Simple Network Management Protocol) 혹은 TMN(Telecommunications Management Network) 체계로 혼재되어 관리되는 네트워크의 NE(Network Element)들을 효율적으로 통합 관리할 수 있는 Generic Interface Adaptor(GIA)를 제안하고 이를 설계 및 구현하였다. GIA는 message mapping, protocol conversion 및 DBMS를 이용한 Object Abstract Translation(OAT)을 통해서 각 관리체계에 맞도록 관리정보를 변환시키며, 이를 통해 TINA EML(Element Management Layer) component와 SNMP NE agent 간의 상호연동을 가능하게 한다.

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