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Quantifying the millimeter wave new radio base stations density for network slicing with prescribed SLAs
Network slicing is expected to become an integral part of future 5G systems providing a simple mechanism for physical network operators to diversify their business models. New Radio (NR) technology operating in millimeter wave (mmWave) band is one of the critical bearers for this functionality, providing extraordinary capacity at the air interface. This paper provides a mathematical tool for assessing the upper and lower bounds of NR BS density needed to maintain the requested slice rate guarantees. The upper bound corresponds to the full traffic isolation between slices while the lower one — to the full mixing of traffic from the slices. To this aim, we unite the tools of stochastic geometry and queuing theory formulating a performance evaluation framework that allows assessing the rate violation metrics in a dynamic network slicing environment. The developed framework captures specifics of mmWave NR …