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为了提高小区边缘用户的性能,提出了一种基于图论的考虑用户业务质量(QoS)的干扰协调方案.把无线资源分配问题映射成图论中的着色问题,同时考虑不同用户分到不同数量资源的场景,即一个点会需要不仅一种颜色的情况,引入了用户资源分配方式,并利用增强SEQ(sequential)着色算法解决该问题.仿真结果表明,提出的方案在不降低小区平均吞吐量的同时,能有效提升边缘用户的性能.
In order to improve the performance of cell-edge users, a scheme of interference coordination based on graph theory is proposed, which considers the quality of service (QoS) of users.The mapping of radio resource allocation problem into the coloring problem in graph theory takes into account the different users’ The scenario of resources, that is, one point would require more than one color, the way of user resource allocation was introduced, and the algorithm of enhanced sequential coloring (SEQ) was used to solve the problem.The simulation results show that the proposed scheme can not reduce the average throughput At the same time, can effectively improve the performance of the edge of the user.