Sheet4 - Faculty of Computers and Information Faculty of...

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Unformatted text preview: Faculty of Computers and Information Faculty of Computers and Information Faculty of Computers and Information Faculty of Computers and Information Sheet 4 Department of Computer Science Data Structures 1 Introduction One of the main elements in the cellular mobile systems is the Mobile Telephone Service Office (MTSO). It provides interfacing of the mobile system to the public switched telephone network. Many users can use their cellular phones simultaneously, and the MTSO has to handle these competing calls. The FIFO policy is not always fair, since more important calls must be served promptly. For example, if there are some voice calls currently in the system—either waiting for connection or already connected—any emergency call must have a priority over them. In addition, any voice call must have a priority over data calls. 1 Since this sheet is educational at a very introductory level, we will consider an over-simplified simulation for the prioritization system mentioned above. Assume that the system handles only three types of calls; Data Calls, Voiceprioritization system mentioned above....
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This note was uploaded on 01/06/2011 for the course CS 214 taught by Professor Waleeda.yousef during the Spring '10 term at Helwan University, Helwan.

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