Abstract
Layered cellular mobile networks have been widely proposed as a way of accommodating traffic growth in mobile communications. There is a need, however, to give some form of priority to handover attempts over fresh call attempts to ensure that handovers are fast and reliable. A class of call control policies with state-dependent control of fresh call arrivals is considered for this purpose. A modified version of the Value Iteration Algorithm is used to solve a Markov decision model for the optimal call control policy. The network blocking performance under optimal state-dependent control is compared with the performance under a much simpler channel reservation policy for a model of a cellular sub-network. The channel reservation policy is shown to perform nearly as well as the optimal policy at lower loads, where fresh call blocking is less than 5%, indicating that it is both an effective and an efficient method for ensuring good handover performance.
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Herzberg, M., McMillan, D. State-dependent control of call arrivals in layered cellular mobile networks. Telecommunication Systems 1, 365–378 (1993). https://doi.org/10.1007/BF02136169
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DOI: https://doi.org/10.1007/BF02136169