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A new analytical model is proposed to evaluate the performance of two-tier cellular networks composed of macrocells (MCs) and small cells (SCs), where terminals roam across the service area. Calls being serviced by MCs may retain their channel when entering a SC service area, if no free SC channels are available. Also, newly offered SC calls can overflow to the MC. However, in both situations channels...
Compared with the conventional hexagonal cellular network structure, Poisson-Voronoi tessellated (PVT) random cellular network models can better capture the topology of real cellular networks. However, the random cellular network models are often complicated to analyze. To overcome this gap, in this paper we propose to analyze the performance of PVT random cellular networks using Markov chains. Using...
We develop a teletraffic model to evaluate the performance of two typical access schemes in two-tier wireless networks. Two of the main performance parameters are the blocking probability and carried traffic. Numerical results show that the femtocell priority access scheme performs better than the macrocell priority access scheme as it achieves lower blocking probability and carries more traffic.
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