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INDONESIA
TEKNIK
Published by Universitas Diponegoro
ISSN : 08521697     EISSN : 24609919     DOI : -
Core Subject : Engineering,
Engineering
Journal yang mempublikasikan artikel-artikel ilmiah dari berbagai disiplin ilmu rekayasa/keteknikan. Artikel-artikel yang dipublikasikan di Jurnal TEKNIK meliputi hasil-hasil penelitian ilmiah asli (prioritas utama), artikel ulasan ilmiah yang bersifat baru (tidak prioritas), atau komentar atau kritik terhadap tulisan ilmiah yang dipublikasikan oleh Jurnal TEKNIK.
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Articles 1 Documents
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Search results for , issue "Volume 28, Nomor 3, Tahun 2007" : 1 Documents clear
TEKNIK PEMINJAMAN KANAL DENGAN METODE BDCL ((BORROWING WITH DIRECTIONAL CHANNEL-LOCKING) PADA SISTEM KOMUNIKASI SELULER Ajulian Zahra M, Ajub
TEKNIK Volume 28, Nomor 3, Tahun 2007
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1174.016 KB) | DOI: 10.14710/teknik.v28i3.2748

Abstract

The cellular mobile mobile telephone system has found important applications in metropolitant areas. Its different types of channel assignment schemes has been adopted in many cellular systems.  To satisfy the high demand of mobile telephone service channel needs to be reused in different noninterfering cells. In the fixed assignment strategy, a set of nominal channels is permanently assigned to each cells, and the same set of channels is reused some distance away. That distance is called the cochannel reuse distance. Using the fixed channel assignment strategy, an arriving call can only be served by the nominally assigned channels. If all nominal channels are assigned, new calls are blocked.    Borrowing channel assignment (BCA) is the simplest   allocation scheme. In borrowing channel assignment, channel assignment is initially fixed that is a channel set is preassigned to each cell. If there are  incoming calls to a cell whose channels are all occupied, the cell borrows channels  from its neighboring cells under the constraint of no interference. When  a channel is borrowed, several other cells are not allowed to use that channel. In this final project two channel assignment  strategies are proposed. They are the borrowing with directional channel-locking and  the fixed channel  assignment. BDCL performance is compared with fixed channel assignment (FCA). In this borrowing with directional channel-locking (BDCL), when a channel is borrowed, the locking of this channel in the cochannel is restricted only those affected by this borrowing..      In this final project the simulated  cellular systems contains 49 hexagonal cells all cells with eight nominal channel. The simulation shows that with the newly proposed BDCL strategy can give a lower lower blocking probability than FCA under nonuniform traffic distribution.

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