Spectrum-efficient call control in a dual-mode TDMA cellular system

This study deals with a call control strategy in a dual-mode time-division multiple access (TDMA) cellular system, which provides services both to analog and digital calls. Since analog calls consume the frequency resource several times as much as digital calls, we consider a call control strategy of the threshold type that the number of active analog calls is restricted within a prespecified level, Given the arrival rates and the GOS's for both types of calls in the cells, two nonlinear integer optimization problems are considered for a multicell system as well as for a single cell system, The one is to find the threshold parameters optimizing the relevant objective measures. The other is to obtain the minimum numbers of required channels in the cells satisfying the GOS's of both types of calls. The solution methods for the two kinds of optimization problems are devised based on the interesting properties of the objective function and the blocking probabilities of both call types. And the efficiency of the proposed algorithms is verified by extensive computational experiments with realistic input data.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
1996-02
Language
ENG
Keywords

ASSIGNMENT; BLOCKING

Citation

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.45, no.1, pp.148 - 156

ISSN
0018-9545
URI
http://hdl.handle.net/10203/4266
Appears in Collection
NE-Journal Papers(저널논문)
Files in This Item
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