中文摘要：

新型架构下的异构网络由于重叠布施低功率基站不但引入严重的同频干扰，并且造成成本资源置配不均衡，这些都是异构网络性能提升需要解决的关键问题。针对上述问题，提出了一种异构网络的多域协作成本资源管理方案。该方案考虑同频信道干扰，并将负载资源利用率转化为成本资源函数的优化问题，通过遗传算法实现最小成本资源对应的负载资源和功率资源的最优解。量化评估显示了推荐方案优于传统的域内成本优化方案，节约了43％的成本资源。在系统级仿真中，信号与干扰加噪声比（SINR）和小区平均吞吐量参数值均表明该方案消除了大量的同频信道干扰，有效配置功率和负载成本资源，使得系统性能有很大的改善。

英文摘要：

In heterogeneous network （Het-Net） deployment, when multiple low-power nodes are deployed across macro cover- age, the geographical coverage overlap can cause severe co-channel interference and unbalanced cost resource allocation. A scheme of multi-domain cooperative cost resource management in Het-Net is proposed, which can effectively allocate the power and load cost resource. The co-channel interference is incorporated in this scheme. The load resource utilization is changed into the optimization issue for the cost resource function. By the genetic algorithms, the optimal solution can be obtained. In numerical evaluation, comparing with the traditional intra-domain scheme, the utilization of cost in proposed scheme is better. And the 43% of cost resource, using the inter-domain cost resource optimization scheme, can be saved. In system-level simulation, the results of SINR and cell average throughput demonstrate the attractive performance gain, due to mitigating more co-channel in terference.