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A Generic Model For Performance Characterization of LTE Operators in LAA Networks

The increasing demand on data and services is pushing LTE network operators toward extending their operations to the unlicensed spectrum. The licensed assisted access (LAA) technology is a promising technology to exploit the unlicensed bands and increase the overall LTE network capacity. However, there is a need for characterizing the network performance of LAA operators as their number scale in the unlicensed bands. Hence, in this paper, we develop a framework based on stochastic geometry to model the coexistence of LAA operators. The area system throughput is utilized to analyze the performance imbalance that results from the coexistence of a large number of operators. We validate the accuracy of the proposed model against Monte Carlo simulations and we shed the light on the severe impact of such co-existence on the performance of some operators where their area system throughput may get drastically reduced.