Performance analysis of fractional guard channel policies in mobile cellular networks

Authors:
J. Vazquez-Avila;F. A.C. Cruz-Perez;L. Ortigoza-Guerrero
Affiliations:
Center for Res. & Adv. Studies, IPN (CINVESTAV-IPN), Mexico City, Mexico;-;-
Venue:
IEEE Transactions on Wireless Communications
Year:
2006

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Abstract

In this letter, recursive formulas for the new call blocking and handoff failure probabilities for Fractional Guard Channel (FGC) policies in cellular networks are derived. The effect of users' mobility on the maximum system capacity achieved with the Guard Channel (GC), the Limited Fractional Guard Channel (LFGC), and the Uniform Fractional Guard Channel (UFGC) strategies is then evaluated. Results show that maximum system capacity decreases exponentially as the mean cell dwell time decreases and that the relative capacity gain of each scheme depends on the mean cell dwell time. It was also found that LFGC outperforms GC and UFGC under any mobility condition.