Interference is the main source of capacity limitation in wireless networks. In some medium access technologies in cellular networks, such as OFDMA, the allocation of frequency subbands is such that interference between cells occurs. This article focuses on preventing harmful interference by properly allocating cells and wireless resources such as subbands to users. In this way, at any time, a set of connections is established that there is no harmful interference between them. In this study, we model inter-cell interference using the protocol interference model and describe interference graph. The proposed model is also applicable to heterogeneous cellular networks. This study provides several types of constraints for the feasibility of a set of connections; each uses a specific component in the network. All constraints are linear; thus, including them in the optimization programs does not increase their structural complexity. A network utility maximization program with joint cell association and interference management is presented, and the effect of applying such interference constraints on simplifying and linearizing the problem structure is described. The presented constraints are discussed in terms of necessary and sufficient conditions for the feasibility of connection, as well as the possibility of distributed construction and verification in cellular network. Two network scenarios are considered, and by using the proposed interference model and appropriate interference constraint, the problem of subband and cell allocation is formulated and solved. The simulation results strongly confirm the performance of the proposed model in practice.

干扰是无线网络容量限制的主要来源。在诸如OFDMA之类的蜂窝网络中的一些媒体接入技术中，频率子带的分配使得小区之间出现干扰。本文的重点是通过为用户正确分配小区和无线资源（例如子带）来防止有害干扰。这样，在任何时候，都建立了一组连接，它们之间没有有害干扰。在本研究中，我们使用协议干扰模型对小区间干扰进行建模并描述干扰图。所提出的模型也适用于异构蜂窝网络。本研究为一组连接的可行性提供了几种类型的约束；每个都使用网络中的特定组件。所有约束都是线性的；因此，将它们包括在优化程序中不会增加它们的结构复杂性。提出了一种具有联合小区关联和干扰管理的网络效用最大化程序，并描述了应用这种干扰约束对简化和线性化问题结构的效果。所提出的约束从连接可行性的必要和充分条件以及蜂窝网络中分布式构建和验证的可能性的角度进行了讨论。考虑两种网络场景，利用所提出的干扰模型和适当的干扰约束，制定和解决子带和小区分配问题。仿真结果有力地证实了所提出模型在实践中的性能。