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[Author] Jang-Hyun BAEK(2hit)

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  • Comparative Performance Evaluation of Movement-Based Registration and Distance-Based Registration

    Byung-Han RYU  Jee-Hwan AHN  Jang-Hyun BAEK  

     
    LETTER-Terrestrial Radio Communications

      Vol:
    E86-B No:3
      Page(s):
    1177-1180

    In this study, we consider movement-based registration (MBR), improved MBR (IMBR) and distance-based registration (DBR). Analytical models based on 2-dimensional random walk in hexagonal cell configuration are considered to analyze the performance of MBR/IMBR and DBR. Especially, we focus on the derivation of the registration cost of DBR scheme by using analytical method and then show that DBR always outperforms not only MBR but also IMBR.

  • A New Paging Strategy Using Paging Agent of Location Area in Mobile Communication Networks

    Jang-Hyun BAEK  Kyung-Hee KIM  

     
    LETTER-Wireless Communication Technology

      Vol:
    E87-B No:5
      Page(s):
    1393-1396

    Due to limited radio resource, an effective paging strategy is essential for improving the utility of radio channels. This paper proposes a new paging strategy that can reduce the paging cost on radio channels by introducing the paging agent in location area (LA). When a mobile-terminated call occurs, the mobile switching center (MSC) looks up a corresponding LA paging agent to determine the exact base station (BS) of the target mobile and pages only one cell. The performance of the proposed strategy is evaluated by an analytical model, and compared with the traditional simultaneous paging strategy and a recent proposal using paging agents of BSs. The numerical results demonstrates that the proposed strategy reduces the paging cost on radio channels compared with other paging strategies.