Abstract: With the rapid increase of wireless service, applying wireless heterogeneous network is considered as a promising technique to solve this problem and increase the resource utilization rate. However, it is difficult to achieve rational spectrum resource allocation when macro-cellular users and femto-cellualr users exist in a network which will introduce the serious cross-interference and inter-interference. To solve this problem, a modified swap matching algorithm based on stable matching theory is proposed to allocate the resource. In the algorithm, femto-cellualr users continuously exchange there matched resources under the given conditions, and reach a stable swap matching finally. Simulation results show that the given modified swap matching algorithm can achieve a better solution than traditional swap matching algorithm and the modified Gale-Shapley matching algorithm and increase the resource utilization rate with a lower computation complexity.

Key words: heterogeneous network, resource allocation, interference management, swap matching, optimization

摘要： 随着无线业务的急剧增长，短缺的频谱资源正面临着巨大挑战。采用无线异构网络被视作解决此问题，提高频谱利用率的一种有效手段。但是，由于宏蜂窝和微蜂窝共享相同频谱资源，同层和跨层干扰非常严重，这时如何合理进行资源分配成了一个棘手的问题。针对该问题，根据匹配理论提出了一种改进多对一转移匹配算法进行资源分配。该算法在满足交换条件下，通过微蜂窝用户不断地交换其匹配资源，最终形成稳定转移匹配。仿真结果表明，所提改进转移匹配算法较传统转移匹配算法和改进Gale-Shapley匹配算法性能更易收敛到最优解，同时提高了频谱利用率，降低了计算复杂度。

关键词: 异构网络, 资源分配, 干扰管理, 转移匹配, 最优化