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Bandwidth Reservation Policy for Cellular Networks Using Geographical Information  

Yu, Jae-Bong (한림대학교 컴퓨터공학과 고속통신연구실)
Park, Chan-Young (한림대학교 컴퓨터공학과 고속통신연구실)
Park, Joon-Seok (㈜인피니트 테크놀로지)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.10B, 2006 , pp. 891-899 More about this Journal
Abstract
Generally, a geographical area consists of many regions called cells in wireless networks. Each mobile host(MH) in a cell communicates with a base station(BS) located in the center of the cell. The BSs are connected to each other by a static wired network. Since users are expected to move around during communication sessions, one of the most important QoS factors is related to the handoff. But, the handoff could fail due to unavailability of sufficient bandwidth in the next cell. As the individual cell size gradually shrinks to accommodate increasing the number of MHs, the probability of successful handoffs can be dropped. In this paper, we suppose a bandwidth reservation method to guarantee MHs against connection failure in case of frequent handoffs. This method predicts the mobility based on the geographical information and assigns the bandwidth reservation in proportion to the speed of MHs' motion. As a result, we can expect more exact moving path of MH and to reduce the waste of bandwidth.
Keywords
QoS; Bandwidth Reservation; Geographical information; Implementation of a Simulator;
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