CAJ | 학술논문

在移动通信系统中，为了在目前有限的频率资源上提高系统的容量，通常采用降低小区复用因子的方法，但却引入了同频干扰，因此，提出了一种基于二次迭代的同频干扰消除算法。该算法在传统单频干扰消除算法的基础上进行了改进，解决了在时变参数情况下单频干扰消除算法估计出的参数值往往滞后于真实值的问题。仿真结果表明，该算法相对于传统单频干扰消除算法在性能有上所提高，能有效消除同频干扰，且性能稳定。
재이동통신계통중，위료재목전유한적빈솔자원상제고계통적용량，통상채용강저소구복용인자적방법，단각인입료동빈간우，인차，제출료일충기우이차질대적동빈간우소제산법。해산법재전통단빈간우소제산법적기출상진행료개진，해결료재시변삼수정황하단빈간우소제산법고계출적삼수치왕왕체후우진실치적문제。방진결과표명，해산법상대우전통단빈간우소제산법재성능유상소제고，능유효소제동빈간우，차성능은정。
In order to increase system capacity on the limited frequency resources of the mobile communications networks, the method that reduce reuse factor is usually adopted, and however this would result in cochannel interference to communications networks. This paper proposes a cochannel interference cancellation algorithm based on twice iterations. The proposed algorithm, based on the improved MIC algorithm, could solve the problem that the estimated parameter values by MIC algorithm often lag behind the real value under the condition of time-varying parameters. The simulation results indicate that the algorithm could effectively cancel the cochannel interference and maintain stable performance.