• Title/Summary/Keyword: 그룹 멤버십 탐지

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Specification and Proof of an Election Algorithm in Mobile Ad-hoc Network Systems (모바일 Ad-hoc 네트워크 시스템하에서 선출 알고리즘의 명세 및 증명)

  • Kim, Young-Lan;Kim, Yoon;Park, Sung-Hoon;Han, Hyun-Goo
    • Journal of Korea Multimedia Society
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    • v.13 no.7
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    • pp.950-959
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    • 2010
  • The Election paradigm can be used as a building block in many practical problems such as group communication, atomic commit and replicated data management where a protocol coordinator might be useful. The problem has been widely studied in the research community since one reason for this wide interest is that many distributed protocols need an election protocol. However, mobile ad hoc systems are more prone to failures than conventional distributed systems. Solving election in such an environment requires from a set of mobile nodes to choose a unique node as a leader based on its priority despite failures or disconnections of mobile nodes. In this paper, we describe a solution to the election problem from mobile ad hoc computing systems and it was proved by temporal logic. This solution is based on the Group Membership Detection algorithm.

Leader Decision Protocol for Dynamic Changing Topology in Mobile Ad hoc Networks (모바일 ad hoc 네트워크에서 동적인 토폴로지 변화에 따른 리더 결정)

  • Kim, Young-Lan;Han, Hyun-Goo;Park, Sung-Hoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.11
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    • pp.4543-4552
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    • 2010
  • A leader is a special process who roles as the coordinator within multiple processes of a group. In a distributed system, leader election is the procedure of electing a coordinator. This is a very important issue for building fault-tolerant distributed systems. When two normal mobile ad hoc networks are merged, there are two leaders. This violates the safety property, so a mechanism to detect and handle are required. In mobile ad hoc distributed computing system, we propose a leader competition protocol and to prove the temporal logic to it. This solution is based on the group membership detection algorithm.