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The DSRR Organizing Algorithm for Efficient Mobility Management in the SIP  

서혜숙 (고려대학교 컴퓨터학과)
한상범 (고려대학교 컴퓨터학과)
이근호 (고려대학교 컴퓨터학과)
황종선 (고려대학교 컴퓨터학과)
Publication Information
Journal of KIISE:Information Networking / v.31, no.5, 2004 , pp. 490-500 More about this Journal
Abstract
In mobile/wireless environment, mobility management is widely being focused as one popular researches. But, disruption happens when messages are exchanged between nodes as registration is made after handoff, and unnecessary traffic occurs because of the use of the Random-walk model, in which the probability for MN to move to neighboring cells is equal. In order to solve these problems, this study proposes a technique and algorithm for composing Directional Shadow Registration Region (DSRR) that provides seamless mobility. The core of DSRR is to prevent disruption and unnecessary traffic by minimizing the number o) neighboring cells with a high probability of handoff (AAAF). This study sensed the optimal time for handoff through regional cell division by introducing a division scheme, and then decided DSRR, the region for shadow registration, by applying direction vector (DV) obtained through directional cell sectoring. According to the result of the experiment, the proposed DSRR processes message exchange between nodes within the intra-domain, the frequency of disruptions decreased significantly compared to that in previous researches that process in inter-domain environment. In addition, traffic that occurs at every handoff happened twice in DSRR compared to n (the number of neighboring cells) times in Previous researches. As an additional effect, divided regions obtained from the process of composing DSRR filter MN that moves regardless of handoff.
Keywords
Mobility Management; SIP; Shadow Registration; Directional Shadow Registration Region(DSRR); Direction Vector(DV); Shadow Trigger Region(STR);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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