论文标题
多层蜂窝网络中的寄宿时间的随机几何分析
Stochastic Geometry Analysis of Sojourn Time in Multi-Tier Cellular Networks
论文作者
论文摘要
在未来的无线服务中，移动性的影响将变得越来越重要，需要解决相关的挑战。 Sojourn时间是移动用户留在单元格中的持续时间，是一种移动性吸引的参数，可以显着影响移动用户的性能，也可以利用它来改善网络中的资源分配和移动性管理方法。在本文中，我们在多层细胞网络中得出了周时间的分布和平均值，其中每个层中基站（BSS）的空间分布遵循一个独立的同质泊松点过程（PPP）。为了获得具有最大偏置平均接收功率关联的多层蜂窝网络中的周时间分布，我们得出了每个层的线性接触分布函数和和弦长度分布。我们还研究了平均周时间与其他与流动性相关的性能指标之间的关系。我们表明，平均索期时间与交接率成反比，并且索期时间的互补累积分布函数（CCDF）通过上面的互补概率从上面界定。此外，我们研究用户速度和网络参数对周时间的影响。
Impact of mobility will be increasingly important in future generation wireless services and the related challenges will need to be addressed. Sojourn time, the time duration that a mobile user stays within a cell, is a mobility-aware parameter that can significantly impact the performance of mobile users and it can also be exploited to improve resource allocation and mobility management methods in the network. In this paper, we derive the distribution and mean of the sojourn time in multi-tier cellular networks, where spatial distribution of base stations (BSs) in each tier follows an independent homogeneous Poisson point process (PPP). To obtain the sojourn time distribution in multi-tier cellular networks with maximum biased averaged received power association, we derive the linear contact distribution function and chord length distribution of each tier. We also study the relation between mean sojourn time and other mobility-related performance metrics. We show that the mean sojourn time is inversely proportional to the handoff rate, and the complementary cumulative distribution function (CCDF) of sojourn time is bounded from above by the complement of the handoff probability. Moreover, we study the impact of user velocity and network parameters on the sojourn time.
