Hyoung-Jun Kim

Electronics and Telecommunications Research Institute, Sŏul, Seoul, South Korea

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Publications (34)0 Total impact

  • Myung-Ki Shin, Ki-Hyuk Nam, Hyoung-Jun Kim
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    ABSTRACT: Recently, Software-defined networking (SDN) is emerging and intensively discussed as one of the most promising technologies to make networks programmable and virtualizable, so that SDN could simplify network operations, reduce cost and accelerate service delivery. Even if openness which gives network customers choice to build best-of-breed their networks is one of main properties of SDN, open architecture, interfaces, APIs, etc. are not fully investigated yet. In this paper, we discuss SDN reference architecture and APIs for open networking environment.
    ICT Convergence (ICTC), 2012 International Conference on; 01/2012
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    ABSTRACT: A logical interface is used to hide the change of network interface from the upper host IP layer and it also can be used for a multiple interfaces mobile node in PMIPv6 domain. In a MN point of view, the link-layer identifier of a logical interface can use same link-layer identifier of physical interface or a totally different link-layer identifier from them of physical interface. And in a LMA point of view, a LMA may acknowledge each physical interface or only a logical interface of a mobile node when a multiple interfaces mobile node utilizes a logical interface. If a LMA assigns multiple home network prefixes to a multiple interfaces mobile node with a logical interface, a logical interface has various usages of the multiple home network prefixes. As following general PMIPv6 operations described in RFC 5213, all multiple home network prefixes are shown to host IP layer. Also, the logical interface hides the existence of multiple home network prefixes and shows only one home network prefix to host IP layer. In this paper, we analyse various usages of a logical interface in a viewpoint of link-layer identifier and multiple home network prefixes and give some guidelines to implement.
    01/2011;
  • Myung-Ki Shin, Hyoung-Jun Kim
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    ABSTRACT: Recently, large-scale IP-based sensor technology (e.g., 6LoWPAN) is emerging for new requirements such as availability, manageability, survivability, stability, and mobility in sensor networks. 6LoWPAN standards are being developed to work on IPv6 over IEEE 802.15.4 specifications. 6LoWPANs can support various topologies like mesh as well as star. Due to the low performance characteristics of 6LoWPAN nodes, mobility support should be provided without high signaling involvement in end nodes. This paper describes L3 mobility scenarios for large-scale IP-based sensor networks (6LoWPANs) and suggests solutions of how to efficiently provide mobility.
    ICT Convergence (ICTC), 2011 International Conference on; 01/2011
  • Myung-Ki Shin, Hyoung-Jun Kim
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    ABSTRACT: Future Internet researches revolve around the notion ¿Architecture¿. Architecture can be defined as the set of principles and basic mechanisms that guide network engineering. Historically, informal architectural ideas guided design of the Internet protocols, but the architecture was formalized later. The today's Internet architecture is under serious reconsideration and people started thinking about alternatives. It is necessary to support a variety of the new different architectures to accommodate the heterogeneity of Future Internet. In the paper, we discuss new challenges on network virtualization and discuss a new way forward for accommodating the multiple, heterogeneous architectures in a single infrastructure.
    Advanced Communication Technology (ICACT), 2010 The 12th International Conference on; 03/2010
  • Sangjin Jeong, Myung-Ki Shin, Hyoung-Jun Kim
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    ABSTRACT: This paper describes implementation details and performance comparison of route optimization scheme for Proxy Mobile IPv6 (PMIPv6). The implementation details presented in the paper leverages route optimization mechanism defined in [5], which is based on Mobile IPv6 and extends the procedures in order to apply for PMIPv6. We also show the analytical performance comparison result of route optimization scheme for PMIPv6.
    Advanced Communication Technology (ICACT), 2010 The 12th International Conference on; 03/2010
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    ABSTRACT: Proxy Mobile IPv6 (PMIPv6) supports multi-homing where a mobile node can connect to a PMIPv6 domain through multiple interfaces for simultaneous access. However, for an interface handoff, PMIPv6 does not allow simultaneous access since all the home network prefixes associated with one interface are associated with another interface of a MN. In this paper, we propose a dynamic home network prefix assignment (DHNPA) scheme where both the fixed prefix model and shared prefix model are used for simultaneous access. Simulation results show that the DHNPA scheme can achieve simultaneous access and provide the information for handoff indication in multi-homing scenario.
    Proceedings of the 6th International Wireless Communications and Mobile Computing Conference, IWCMC 2010, Caen, France, June 28 - July 2, 2010; 01/2010
  • Myung-Ki Shin, Hyoung-Jun Kim
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    ABSTRACT: Future Internet researches revolve around the notion “Architecture”. Architecture can be defined as the set of principles and basic mechanisms that guide network engineering. Historically, informal architectural ideas guided design of the Internet protocols, but the architecture was formalized later. The today's Internet architecture is under serious reconsideration and people started thinking about alternatives. It is necessary to support a variety of the new different architectures to accommodate the heterogeneity of Future Internet. In the paper, we discuss new challenges on virtualized programmable platform and discuss a new way forward for accommodating the multiple, heterogeneous architectures in a single infrastructure.
    01/2010;
  • Sangjin Jeong, Myung-Ki Shin, Hyoung-Jun Kim
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    ABSTRACT: This paper describes implementation details of route optimization support for Proxy Mobile IPv6 (PMIPv6). The implementation details presented in the paper leverages route optimization mechanism defined in, which is based on Mobile IPv6 and extends the procedures in order to apply for PMIPv6. Our implementation supports route optimization for both IPv6 mobile nodes and IPv4 mobile nodes.
    Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on; 03/2009
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    ABSTRACT: This paper specifies adaptive GTS allocation scheme for QoS support and supporting multiple devices with minimizing the waste of channel bandwidth in IEEE 802.15.4 networks. In the current superframe structure defined in IEEE 802.15.4 networks, the number of available guaranteed time slots (GTS) is limited to 7 and the channel bandwidth may be wasted with the increment of superframe order (SO). In the proposed scheme, we extend the superframe structure to increase the number of GTS to support QoS of multiple devices and to minimize the waste of channel bandwidth, even though SO value is increased. We analyze the performance efficiency between IEEE 802.15.4 MAC and the proposed scheme and evaluate the proposed scheme.
    Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on; 03/2009
  • Myung-Ki Shin, Hyoung-Jun Kim
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    ABSTRACT: Recently, large-scale IP-based sensor technology (e.g., 6LoWPAN) is emerging for new requirements such as availability, manageability, survivability, stability, and mobility in sensor networks. 6LoWPAN standards are being developed to work on IPv6 over IEEE 802.15.4 specifications. 6LoWPANs can support various topologies like mesh as well as star. Mesh topologies imply multi-hop routing, to a desired destination. Mesh networks are likely to consist of nodes with a certain degree of mobility. Due to the low performance characteristics of 6LoWPAN nodes, mobility support should be provided without high signaling involvement in end nodes. This paper describes L3 mobility scenarios for large-scale IP-based sensor networks (6LoWPANs) and suggests solutions of how to efficiently provide mobility.
    Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on; 03/2009
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    Jung-Soo Park, Hyoung-Jun Kim
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    ABSTRACT: This paper proposes IPv6-based next generation network which is mainly operated based on IPv6 features. This identifies definition, overall architecture and general requirements of IPv6-based NGN.
    Advanced Communication Technology, 2008. ICACT 2008. 10th International Conference on; 03/2008
  • Joo-Chul Lee, Hyoung-Jun Kim
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    ABSTRACT: The roaming (or handover) between heterogeneous networks is an emerging issue of the most recent communication environment. The wide deployment of wireless networks like WLAN, CDMA or WiMax accelerates growth of chance requiring roaming across heterogeneous wireless networks. As a solution of mobility management across heterogeneous networks the MIP6 (mobile IPv6) is used generally and NEMO (network mobility), an extension of the MIP6, is used for network mobility management. In this paper we design a mobile router supporting network mobility and handover between heterogeneous networks. Since The NEMO specification supports only IPv6, the NEMO itself is not enough to be deployed in current Internet environment without the consideration of IPv4 traversal. Thus, we add a feature allowing the mobile router to roam over both IPv6 and IPv4 networks.
    Advanced Communication Technology, The 9th International Conference on; 03/2007
  • Myung-Ki Shin, Youn-Hee Han, Hyoung-Jun Kim
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    ABSTRACT: Recently, broadband wireless access network (IEEE 802.16/WiBro) is emerging for wireless communication for user requirements such as high quality data/voice service, fast mobility, wide coverage, etc. As the deployment of wireless broadband access network progresses, users will be connected to IPv6 (Internet protocol version 6) networks. While the IEEE 802.16 specifications define the encapsulation of an IP datagram in an IEEE 802.16 MAC payload, a complete description of IPv6 operation and deployment is not present and some of issues are still being discussed in IETF and WiMAX NWG. In this paper, we will discuss the main components of IEEE 802.16 IPv6 access network and its differences from IPv4 networks and how IPv6 is deployed and integrated in each of the IEEE 802.16 technologies using tunneling mechanisms and native IPv6. Also we will discuss the IPv6 impact on link models and deployment scenarios.
    Advanced Communication Technology, The 9th International Conference on; 03/2007
  • Yong-Geun Hong, Jung-Soo Park, Hyoung-Jun Kim
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    ABSTRACT: This paper specifies the IPv6 address configuration over 3G networks. Although 3GPP and 3GPP2 handle the same issues, they provide a minimum guideline to use IPv6 in 3G networks. In this paper, we describe the IPv6 address configuration over CDMA for the compatibility with general IPv6 operations and efficient IPv6 address configuration. This paper includes general IPv6 address configuration, IPv6 address configuration in 3GPP, and IPv6 address configuration in 3GPP2. With the comparison to general IPv6 operations, we identify some problems of IPv6 address configuration in 3GPP and 3GPP2, and then describe some solutions to solve the problems.
    Advanced Communication Technology, The 9th International Conference on; 03/2007
  • Sang-Do Lee, Myung-Ki Shin, Hyoung-Jun Kim
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    ABSTRACT: This paper related to a method and apparatus for producing the IPv6 mapped EPC code, the electronic product code is used in the RFID (radio frequency identification) system to identify products. But the code is not accessible using Internet address because the EPC code is just an object identifier such as the bar code. This paper suggests the mechanism producing IPv6 mapped EPC address to communicate between objects. This paper is composed of the step to prepare the EPC code from the electronic tag and to assemble the network prefix address with EPC code.
    Advanced Communication Technology, The 9th International Conference on; 03/2007
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    ABSTRACT: This paper presents an enhanced fast handover scheme in mobile IPv6 named crossover based fast handover mobile IPv6 (X-FMIPv6). We propose a lightweight crossover router pre-discovery process that identifies the location of CR in advance, before the MN actually makes handoff. A tunnel is setup between Crossover Router and NAR to minimize not only the service disruption time but also the redundant routing and network resource utilization. The numerical results indicate that our proposed scheme can improve handover efficiency in comparison with other existing solutions.
    Optical Internet and Next Generation Network, 2006. COIN-NGNCON 2006. The Joint International Conference on; 08/2006
  • Gyu Myoung Lee, Jun Kyun Choi, Hyoung-Jun Kim
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    ABSTRACT: For IPv6-based next generation network (NGN), this paper describes the needs and applications of IPv6 signaling to support quality of service (QoS) and presents QoS provisioning and implementation methods with IPv6 signaling.
    Optical Internet and Next Generation Network, 2006. COIN-NGNCON 2006. The Joint International Conference on; 08/2006
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    ABSTRACT: In this paper, we present flexible bound resource admission control algorithm using softness profile to reduce handover blocking probability over heterogeneous network environment in BcN.
    Optical Internet and Next Generation Network, 2006. COIN-NGNCON 2006. The Joint International Conference on; 08/2006
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    Conference Paper: IPv6 multihoming for NGN
    Hyoung-Jun Kim, Yong-Geun Hong, Sang-Ha Kim
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    ABSTRACT: This paper specifies the deployment of IPv6 multihoming for next generation networks. IPv6 multihoming is developed for network aspect but IPv6 multihoming can be used for a host in NGN also. In this paper, we describes the features of IPv6 multihoming and requirements for the use of IPv6 multihoming in NGN environments. This paper also provides applications scenarios of IPv6 multihoming for NGN so as to facilitate the advanced applications and services in the IPv6 based NGN networks
    Advanced Communication Technology, 2006. ICACT 2006. The 8th International Conference; 03/2006
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    ABSTRACT: IEEE 802.16 issued standards for the new PHY and MAC for providing broadband wireless access network. It is characterized by very high data rates and wider range which are different from existing wireless access technologies such as IEEE 802.11 or 3G. Accordingly, the use of IPv6 over IEEE 802.16 network is currently undefined. There are several issues to be considered in deploying IPv6 over IEEE 802.16 networks. Among them, this document will describe issues related to NDP (neighbor discovery protocol) over IEEE 802.16 networks
    Advanced Communication Technology, 2006. ICACT 2006. The 8th International Conference; 03/2006