中文摘要：

在双重的 femtocell 网络，中央 macrocell 在通用频率复用模式最好是有很多更短的范围 femtocell 热点的 underlaid，它是。这种新网络体系结构引起迫切挑战到干扰管理和收音机资源分配的计划。由这些挑战激发了，三贡献在这份报纸被做：1 ) 为多重存取(OFDMA ) downlink 基于的直角的频率分割的一个新奇联合子通道和力量分配问题 femtocells 在最小化每个 Femto 基础车站的散发的干扰的前提上被提出。2 ) 伪移交基于安排交换方法被建议交换合作级，并且因此避免碰撞干扰的信息和跨级的信息。3 ) 力量控制和子通道的一个反复的计划被建议在贡献 1 解决提出的问题) ，它是一个 NP 完全的问题。通过有四个另外的计划的模拟和比较，在减少干扰并且改进光谱效率的更好的性能被建议计划完成。

英文摘要：

In the two-tier femtocell network, a central macroceU is underlaid with a large number of shorter range femtocell hotspots, which is preferably in the universal frequency reuse mode. This kind of new network architecture brings about urgent challenges to the schemes of interference management and the radio resource allocation. Motivated by these challenges, three contributions are made in this paper： 1） A novel joint subchannel and power allocation problem for orthogonal frequency division multiple access （OFDMA） downlink based femtocells is formulated on the premise of minimizing radiated interference of every Femto base station. 2） The pseudo-handover based scheduling information exchange method is proposed to exchange the co-tier and cross-tier information, and thus avoid the collision interference. 3） An iterative scheme of power control and subchannel is proposed to solve the formulated problem in contribution 1）, which is an NP-complete problem. Through simulations and comparisons with four other schemes, better performance in reducing interference and improving the spectrum efficiency is achieved by the proposed scheme.