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Mohammed Hassan Dervish
Tikrit University
Computer Science & IT

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Reduce the probability of blocking for handoff and calls in cellular systems based on fixed and dynamic channel assignment Shahir Fleyeh Nawaf; Mohammad Omar Salih; Mohammed Hassan Dervish
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 18, No 4: August 2020
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v18i4.15729

Abstract

In cellular systems the high probability of blocking represents a big problem for users, The proposed solution by reducing the blocking probability and investigation cellular systems by method channels assignment. The aim from apaper is studying the effect the channel assignment on the value of blocking probability. The results showed that the fixe channeld assignment gives a large probability of blocking for high loads, While  (FCA) reduce probability of blocking for handoff and calls according to cluster size. The cellular system representation in the case of (DCA), in (3-cell reuse) and (7-cell reuse), the results showed the first best way to reduce blocking probability and lead to reduce to approximately zero when loads that are less than 200%. Increasing  the cluster size causes to reduce blocking  probability. the results showed that the probability blocking for handoff  less than from probability of  blocking for new calls.
Co-Authors Mohammad Omar Salih Shahir Fleyeh Nawaf