Approximated Mathematical Analysis Methods of Guard-Channel-Based Call Admission Control in Cellular Networks

Abstract

Guard Channel-based call admission control strategies are a classical topic of exhaustive research in cellular networks (Lunayach et al., 1982; Posner & Guerin, 1985; Hong & Rappaport, 1986). Guard channel-based strategies reserve an amount of resources (bandwidth/number of channels/transmission power) for exclusive use of a call type (i.e., new, handoff, etc.), but they have mainly been utilized to reduce the handoff failure probability in mobile cellular networks. Guard Channel-based call admission control strategies include the Conventional Guard Channel (CGC) scheme1 (Hong & Rappaport, 1986), Fractional Guard Channel (FGC) policies2 (Ramjee et al., 1997; Fang & Zhang, 2002; Vazquez-Avila et al., 2006; Cruz-Perez & Ortigoza-Guerrero, 2006), Limited Fractional Guard Channel scheme (LFGC) (Ramjee et al., 1997; Cruz-Perez et al., 1999), and Uniform Fractional Guard Channel (UFGC) scheme3 (Beigy & Meybodi, 2002; Beigy & Meybodi, 2004). They have widely been considered as prioritization techniques in cellular networks for nearly 30 years because they are simple and effective resource management strategies (Lunayach et al., 1982; Posner & Guerin, 1985; Hong & Rappaport, 1986). In this Chapter, both a comprehensive review and a comparison study of the different approximated mathematical analysis methods proposed in the literature for the performance evaluation of Guard-Channel-based call admission control for handoff prioritization in mobile cellular networks is presented.