Network slicing is an architectural enabling technology that logically decouples the current cellular networks into infrastructure providers (InPs) and Network Slice Tenants (NSTs). The network resources (e.g., radio access resources at each cell) are owned by the InP, and are shared by the NSTs to provide a service to their mobile users. In this context, we proposed a business model that includes resource allocation and user subscription to NSTs in a competitive setting, and provides, among other things, closed-form expressions for the subscription indicators in equilibrium of each NST at each cell. This model relies on the widely adopted logit model to characterize user subscriptions. However, as a consequence of user mobility and radio propagation, some of the underlying assumptions in the logit model do not hold. Therefore, further research is needed to assess the accuracy of the results provided by the logit model in a mobile radio scenario. We carry out a thorough evaluation of the validity of the model by comparing its results against those obtained through computer simulation. Our simulation model includes complete and realistic characterizations of user mobility and radio propagation. From the results, we conclude in most cases the logit model provides valid results in a mobile radio scenario.

翻译：网络切片是一种架构使能技术，它将当前蜂窝网络在逻辑上解耦为基础设施提供商（InPs）和网络切片租户（NSTs）。网络资源（例如每个小区的无线接入资源）由InP拥有，并由NSTs共享以向其移动用户提供服务。在此背景下，我们提出了一种包含竞争环境下资源分配和用户订阅至NSTs的商业模型，并特别提供了每个NST在每个小区均衡状态下订阅指标的闭式表达式。该模型基于广泛采用的logit模型来刻画用户订阅行为。然而，由于用户移动性和无线传播的影响，logit模型中的部分基本假设不再成立。因此，需要进一步研究以评估logit模型在移动无线场景中所提供结果的准确性。我们通过将模型结果与计算机仿真获得的结果进行比较，对模型有效性进行了全面评估。我们的仿真模型包含了完整且真实的用户移动性与无线传播特性表征。根据结果，我们得出结论：在大多数情况下，logit模型在移动无线场景中能够提供有效结果。