Small cells are expected to increase the capacity and the coverage of a wireless network. Since the transmission ranges of the small cells overlap with each other, a user equipment (UE) can be located within the service areas of multiple cells. Therefore, the association decisions made by the small cells and the UEs influence the energy efficiency of the cells and the data rates provided to the UEs. However, if they attempt to achieve their goals selfishly, the network may become instable in that a UE has to change its associated cell and a cell has to change the set of UEs associated with it frequently. To tackle the problem, in this paper, we propose an association game between UEs and cells. We cast the problem as a matching game where each player has preference over the other player. Then, we propose an association algorithm composed of a UE-side part and a cell-side part. Through simulation studies, we show that the proposed method outperforms the other methods in that it can enhance the average energy efficiency of the small cell network and the data rates that UEs can obtain from the network.

中文翻译：

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UE与小型小区之间的冲突解决的关联游戏

小型小区有望增加无线网络的容量和覆盖范围。由于小小区的传输范围彼此重叠，因此用户设备（UE）可以位于多个小区的服务区域内。因此，由小型小区和UE做出的关联决定影响小区的能量效率和提供给UE的数据速率。然而，如果他们试图自私地实现其目标，则网络可能变得不稳定，因为UE必须改变其相关联的小区并且小区必须频繁地改变与其相关联的UE的集合。为了解决该问题，在本文中，我们提出了UE与小区之间的关联游戏。我们将问题投射为匹配游戏，其中每个玩家都比另一个玩家具有优先权。然后，我们提出了一种由UE侧部分和小区侧部分组成的关联算法。通过仿真研究，我们发现该方法优于其他方法，因为它可以提高小型蜂窝网络的平均能效以及UE从网络获得的数据速率。