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Rearrangement Methods of Dynamic Channel Assignment in Cellular Mobile Systems

Keisuke NAKANO, Masakazu SENGOKU, Toshihiko TAKAHASHI, Yoshio YAMAGUCHI, Shoji SHINODA, Takeo ABE

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Summary :

In mobile communication systems using Dynamic Channel Assignment, channels are possible to be rearranged so that blocking probability can be made low. The smaller the number of cells where channels are rearranged, the smaller the load on the base stations in the cells. Also, we can reduce the deterioration of communication quality caused by reassingning a new channel to a call instead of the channel already assigned. In this paper, we consider not only how to rearrange channels but also which channel should be rearranged and assigned to a new call in rearrangement, and propose very simple but effective methods for rearrangement. The ways to select a candidate channel to be rearranged and assigned to a new call in the new methods make the number of cells where a channel is rearranged smaller. We also examine the relations between characteristics and the number of cells where a channel is rearranged. Using computer simulation results, the properties of the new rearrangement methods are compared with those of the traditional methods.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E75-A No.12 pp.1660-1666
Publication Date
1992/12/25
Publicized
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Type of Manuscript
Special Section PAPER (Special Section on Networks and Mobile Communications)
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