• Title/Summary/Keyword: 중복 주소 감지

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IPv6 Address Autoconfiguration for AODV in Mobile Ad Hoc Networks (이동 애드혹 네트워크 환경에서 AODV를 위한 IPv6 주소 자동 설정)

  • Ahn, Sang-Hyun;Kim, Young-Min;Lee, Young-Ju
    • Journal of KIISE:Computing Practices and Letters
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    • v.13 no.1
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    • pp.1-10
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    • 2007
  • An advantage of the mobile ad hoc network (MANET) is that mobile nodes can self-organize the network topology without the help of network infrastructure. However, for the perfect self-organization of the MANET, each mobile node needs to self-configure its address. Even though a mobile node configures a unique address during the booting time, its address may conflict with nodes in other MANETs since MANETs containing the same address can be merged. The address autoconfiguration protocol implemented in this work consists of the strong DAD (Duplicate Address Detection) and the weak DAD. A unique address of a node is assigned by the strong DAD during the booting time and the weak DAD is used to detect address conflict and resolve address conflict during the ad hoc routing. In this work, we have implemented address autoconfiguration in the IPv6-based MANET using AODV as the routing protocol. We describe how the IPv6 address autoconfiguration is implemented and verify our implementation by showing the test scenarios on our testbed.

Performance Analysis of an Address Auto-configuration Method Applying to Mobile Ad hoc Network Using NS-2 (NS-2를 이용한 MANET의 주소 자동설정 기법의 성능분석 연구)

  • Kim, Sun-Hwa;Go, Bin;Lee, Kyou-Ho
    • Journal of the Korea Society for Simulation
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    • v.19 no.3
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    • pp.1-6
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    • 2010
  • Simulation analysis may be the essential means to either evaluate performance of systems or optimize system parameters for new design. Including many variations for design and implementation, MANET (Mobile Ad-hoc NETwork) is one target area of such an analysis. Since every node, however, included in the network has mobility, one MANET could be overlapped or merged with another one which use a different transport protocol. In order to communicate among nodes in this case, the new merged network should configure paths and addresses in advance. Configuring paths and addresses generates much overheads which ultimately cause delay in communicating data. Performance analysis is required to improve the data transport performance by minimizing overheads. This paper proposes a sound address auto-configuration method which is based on an on-demand manner and then presents modeling and performance analysis of the method. NS-2 simulation results verify that the proposed method can not only alleviate overheads, which are inevitably generated for address auto-configuration processes, and but also decentralize them in time.

Performance of Cellular Ethernet System with Fast Handovers for WiBro Networks (고속 핸드오버를 지원하는 휴대 인터넷용 셀룰라 이더넷 시스템의 성능 분석)

  • Jung, Han-Gyun;Yoon, Chong-Ho;Cho, Jae-Hun;Oh, Yun-Je;Hwang, Seong-Taek
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.43 no.11 s.353
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    • pp.25-34
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    • 2006
  • In this paper, we propose the new Cellular Ethernet System that supports faster handovers than IP layer handover scheme for WiBro Networks and analyze the performance of the proposed scheme. In WiBro Networks, it is very important for service providers that supports fast handovers for mobile users who want superior service. But in case of Mobile IPv6, which supports IP layer handovers, there exists very long latency for detecting movement and duplicated IP address. And besides, handovers in wired area must be carried out after completing handovers in wireless area. So, Mobile IPv6 cannot provide superior service to mobile users. To remedy these problems, we here propose the new Cellular Ethernet System that consists of MAC layer bridges for WiBro Networks and analyze the performance of Cellular Ethernet System handover scheme and show that it has better performance than Mobile IPv6.