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

Cruz-Perez, F.A.; Toledo-Marin, R.; Hernandez-Valdez, Genaro

doi:10.5772/15962

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Performance Analysis for New Call Bounding Scheme with SFR in LTE-Advanced Networks

Safwat

Badawy

Yehya³

et al. 2014

2014 IEEE Intl Conf on High Performance Computing and Communications, 2014 IEEE 6th Intl Symp on Cyberspace Safety and Security

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the call admission control (CAC) optimizes the use of allocated channels against offered traffic maintaining the required quality of service (QoS). Provisioning QoS to user at celledge is a challenge where there is limitation in cell resources due to inter-cell interference (ICI). New Call bounding scheme is a Call Admission control that depends on restricting the number of new calls accepted into the cell by a threshold. In this paper, traffic analysis in cell-edge is developed based on NCB policy using three dimension Markov model. The model is based on actual resources allocated to cell-edge users according to SoftFrequency Reuse (SFR) scheme in LTE-Advanced system. In the proposed model, the performance metrics in terms of blocking and dropping probability for cell-edge and cell-core users is deduced separately; in addition, the optimal parameter settings for system performance metrics is developed.

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