• Title/Summary/Keyword: PMIPv6

Search Result 158, Processing Time 0.031 seconds

A Mechanism for Supporting 6LoWPAN Node Mobility based on Proxy Mobile IPv6 (Proxy Mobile IPv6 기반 6LoWPAN 노드의 이동성 지원 기법)

  • Kim, Jin-Ho;Lee, Hye-Chan;Hong, Choong-Seon
    • Proceedings of the Korean Information Science Society Conference
    • /
    • 2008.06d
    • /
    • pp.470-475
    • /
    • 2008
  • 6LoWPAN 센서 노드의 이동성을 지원하기 위해 기존의 Mobile IPv6 (MIPv6)와 같은 프로토콜을 활용하는 것은 저전력에 제한적 사양의 하드웨어로 구성된 6LoWPAN 센서 노드에서 구동되는 것이 현실적으로 불가능하다. 따라서 Mobile Access Gateway (MAG)가 6LoWPAN 센서 노드의 이동시 발생하는 바인딩 시그널링을 대신 처리해주는 Proxy Mobile IPv6 (PMIPv6) 프로토콜을 6LoWPAN에 적용하면 효율적으로 이동성을 지원할 수 있다. 하지만 Proxy Mobile IPv6는 6LoWPAN 이동 센서 노드와 1홉으로 연결되는 경우에 6LoWPAN 이동 센서 노드의 이동을 인지하고 Proxy Binding Update(PBU)를 하게 되지만, 6LoWPAN 센서 네트워크와 같이 멀티 홉으로 구성되는 네트워크에는 Proxy Mobile IPv6를 바로 적용할 수 없다. 따라서 본 논문에서는 기존의 1홉 단위로 연결된 6LoWPAN 이동 센서 노드의 이동성을 지원하는 Proxy Mobile IPv6 프로토콜을 멀티를 환경의 6LoWPAN 센서 네트워크에 적용하기 위한 방법을 제안한다.

  • PDF

Reducing the handover latency and buffer size in Fast handover PMIPv6 with GPS (GPS를 이용한 빠른 핸드오버 시의 핸드오버 지연과 필요 버퍼 절감 기법 제안)

  • Park, Changyong;Shon, Minhan;Choo, Hyunseung
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2012.04a
    • /
    • pp.583-585
    • /
    • 2012
  • PMIP (Proxy Mobile IPv6)은 네트워크 기반 이동성 지원 프로토콜로, 호스트 기반 이동성 프로토콜에 비해 핸드오버 시간을 줄였지만 완전히 제거하지 못하였고 핸드오버 시의 패킷 손실에 대해서도 고려하지 않는다. 따라서 핸드오버 시간을 줄이고 패킷 손실을 방지하여 끊김 없는 서비스를 제공하기 위한 빠른 predictive 핸드오버 방식이 제안되었다. 하지만 이 방식을 이용할 경우 predictive 모드에서의 핸드오버 절차를 진행하기 위해 불필요한 핸드오버 지연이 발생할 수 있다. 본 논문에서는 GPS를 이용하여 MN (Mobile Node)의 위치정보를 파악하고 이를 통해 predictive 모드에서의 빠른 핸드오버 절차 진행 시 발생하는 문제점 해결을 위한 기법을 제안한다.

Model and Architecture of User-Defined Networks for Seamless Mobility Management in Diverse Wireless Environment (다양한 무선 환경에서 끊김 없는 이동성 관리를 위한 사용자 정의 네트워크 모델 및 구조)

  • Chun, Seung-Man;Nah, Jae-Wook;Lee, Seung-Mu;Choi, Jun-Hyuk;Park, Jong-Tae
    • Journal of the Institute of Electronics Engineers of Korea TC
    • /
    • v.48 no.11
    • /
    • pp.35-43
    • /
    • 2011
  • In this paper, we propose a novel architecture for seamless mobility management to provide users with seamless Internet connection when users roam between diverse wireless local area networks (WLANS) controlled by different management entities. There have been many researches in IETF, i.e., MIPv6, HMIPv6, and PMIPv6, to provide the mobility management. However, practically since wireless access points or access routers, which are managed by an individual manager or ISP managers, have different authentication scheme and the supported mobility management, the previous mobility management protocol developed by IETF can not guarantee the quality of service of application services as the mobile node performs the handover. To solve this drawback, we propose the mobility management scheme to provide QoS-guaranteed Internet services during the handover by configurating the wireless networks which is defined by users. More specifically, we present a model, the architecture and an algorithm for user-defined network (UDN) to provide the seamless Internet service. Finally, the performance of the proposed algorithm is evaluated by the network simulation tool.

Performance Analysis of a Fast Vertical Handover Scheme between MIH and PFMIPv6 (MIH와 PFMIPv6 환경의 고속 수직핸드오버 방안의 성능분석)

  • Choi, Go-Ya;Min, Sang-Won;Kim, Bok-Ki
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.36 no.10B
    • /
    • pp.1175-1181
    • /
    • 2011
  • For vertical handover, the part for the homogeneous handover needs to be modified, which allows users to utilize the various wireless access schemes with a mobile terminal with PFMIPv6. In this paper, we considered a cross-layer design for fast vertical handover between MIH and PFMIPv6, where two MIH-layer messages are suggested to reduce handover latency and integrate between MIH and PFMIPv6 efficiently. The proposed scheme is evaluated with handover latency. The results show that the proposed handover procedure reduces handover latency compared with the existing one.

A Hierarchical Authentication for Proxy Mobile IPv6 Networks (프록시 모바일 네트워크를 위한 계층적 인증 기법)

  • Kim, KyungJoon;Baek, JaeJong;Song, JooSeok
    • Journal of the Korea Institute of Information Security & Cryptology
    • /
    • v.24 no.1
    • /
    • pp.165-170
    • /
    • 2014
  • In this paper, a hierarchical authentication protocol is proposed to minimize authentication delay in proxy mobile IPv6 networks. The authentication function of the AAA server is distributed to the LMAs and the MAGs. If the LMAs or the MAGs have authentication information of the MNs, they authenticate the MN on behalf of the AAA servers. Therefore, the authentication delay is reduced. The AAA server is vulnerable to denial-of-service attack. If the AAA server is down, MNs cannot access the proxy mobile IPv6 network until they are authenticated. The proposed scheme reduces the load on the AAA server by distributing the authentication function to the LMAs and the MAGs.

Mechanism for Location Based Service on Proxy MIPv6 (Proxy MIPv6 환경에서 위치기반서비스제공을 위한 메커니즘)

  • SangWook Bae;JungWook Song;BoYoung Rhee;HeeMin Kim;Sunyoung Han
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2008.11a
    • /
    • pp.1300-1302
    • /
    • 2008
  • 최근 위성을 통한 위치정보서비스를 이용하여 응용서비스를 제공하려는 움직임이 늘고 있다. 이처럼 위치기반서비스(LBS: Location Based Service)를 제공하려는 현재의 추세를 볼 때에 단말에 위치기반을 위한 기능은 필수적인 추가사항이며 이를 위한 단말의 부담은 고려해야 할 사항이다. 그러나 A-GPS(Assisted GPS) 기술 중 A-GPS Server(Assistance GPS Server)을 이용함으로써 단말에 부담을 적게 하면서 위치기반의 서비스를 제공받을 수 있고, 핸드오버 지연을 효과적으로 줄일 수 있다면 1 석 2 조의 효과를 얻을 수 있게 된다. 본 논문에서는 기존 PMIPv6(Proxy Mobile IPv6) 메커니즘에 A-GPS Server 를 두어서 효과적인 핸드오버 수행과정을 거치고, 위치기반서비스(LBS)를 제공하는 메커니즘을 제안한다.

A Seamless Flow Mobility Management Architecture for Vehicular Communication Networks

  • Meneguette, Rodolfo Ipolito;Bittencourt, Luiz Fernando;Madeira, Edmundo Roberto Mauro
    • Journal of Communications and Networks
    • /
    • v.15 no.2
    • /
    • pp.207-216
    • /
    • 2013
  • Vehicular ad-hoc networks (VANETs) are self-organizing, self-healing networks which provide wireless communication among vehicular and roadside devices. Applications in such networks can take advantage of the use of simultaneous connections, thereby maximizing the throughput and lowering latency. In order to take advantage of all radio interfaces of the vehicle and to provide good quality of service for vehicular applications, we developed a seamless flow mobility management architecture based on vehicular network application classes with network-based mobility management. Our goal is to minimize the time of flow connection exchange in order to comply with the minimum requirements of vehicular application classes, as well as to maximize their throughput. Network simulator (NS-3) simulations were performed to analyse the behaviour of our architecture by comparing it with other three scenarios. As a result of this work, we observed that the proposed architecture presented a low handover time, with lower packet loss and lower delay.

A Scheme to Handle Out-of-Order Packets in Route Optimization for Proxy Mobile IPv6 (Proxy Mobile IPv6 에 대한 라우트 최적화에서 불규칙 패킷을 다루기 위한 기법)

  • Anh, Khuong;Yeoum, Sanggil;Kim, Dongsoo;Choo, Hyunseung
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2014.04a
    • /
    • pp.190-191
    • /
    • 2014
  • Out-of-Order Packet ($O^3P$) problem is an issue that significantly impacts to the QoS of service and network. Route optimization (RO) in PMIPv6 is proposed by P.Loureiro and M. Liebsch to reduce the load of LMAs and transmission delay. In RO scheme, at the time the optimal path is established, there exist two paths: optimal path and old path as non-optimal path for transmitting data between MN1 and MN2 that is the cause of $O^3P$ occurring. This paper proposes a scheme to prevent $O^3P$ problem by using packet buffering technique and a new mobility message, named End Traffic Marker (ETM) to mark the end of packet delivery through the old path.

A Network-based IPv6 Handover Scheme for Improving Multimedia Transmission Service in IEEE 802.11 Networks (IEEE 802.11 네트워크에서 멀티미디어 전송 서비스 향상을 위한 네트워크 기반 IPv6 핸드오버 기법)

  • Park, Byung-Joo;Kim, Bong-Ki;Han, Youn-Hee
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.33 no.6B
    • /
    • pp.420-429
    • /
    • 2008
  • Currently, IEEE 802.11 Network could not support optimized tunneling scheme and buffering scheme based on movement detection to reduce multimedia data packet loss when an MN move from current subnet to new subnet during handover. It is because IEEE 802.11 did not transfer information of movement detection to AP. In this paper, we proposed new fast handover scheme by using advanced access point and optimized snoop protocol for network based Proxy Mobile IPv6 in IEEE 802.11 Networks. During handover, the proposed scheme reduces both the multimedia data packet loss rate and the packet reordering problems without changing MN's mobility stack in IEEE 802.11 Networks.

Cost Analysis of Mobility Management Schemes for IP-based Next Generation Mobile Networks (IP기반의 차세대 모바일 네트워크에서 이동성관리 기법의 비용분석)

  • Kim, Kyung-Tae;Jeong, Jong-Pil
    • Journal of Internet Computing and Services
    • /
    • v.13 no.3
    • /
    • pp.1-16
    • /
    • 2012
  • Cost-effective mobility management for the roaming mobile users is very important in the seamless services on next-generation wireless network (NGWN). MIPv6 (Mobile IPv6) is one of the mobility management schemes proposed by the IETF (The Internet Engineering Task Force) and various IPv6-based mobility management schemes have been developed. They are directly involved with data transfer from MN (Mobile Node). In this paper, two kinds of schemes in analyzing of mobility management schemes are proposed. The signaling transfer and packet delivery procedures for each mobility management schemes are analyzed, respectively. The signaling cost for mobility management schemes are calculated, and the cost of each protocol are analyzed numerically. In other word, applying the sum of signaling cost and packet delivery cost to each mobility management scheme, their costs are analyzed. Finally, our performance evaluation results that the network-based mobility management scheme shows better performance in terms of overall cost.