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首页> 外文期刊>IEEE Transactions on Electromagnetic Compatibility >Complexity Analysis of a Heuristic Method for Fixed-Frequency Assignment Including Adjacent Channel Interference
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Complexity Analysis of a Heuristic Method for Fixed-Frequency Assignment Including Adjacent Channel Interference

机译：包含相邻信道干扰的固定频率分配启发式方法的复杂性分析

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摘要

In this paper, we extend an existing heuristic algorithm for fixed-frequency assignment in cellular communication networks in order to account for the effects of adjacent channel interference (ACI). Our algorithm utilizes estimations of carrier-to-interference ratio instead of binary channel separation constraints. The extended algorithm avoids overoptimistic frequency assignments that do not guarantee interference-free operation environments. Its cost is the increased computational complexity. We estimate the upper bound of the algorithm''s complexity when ACI is taken into account. Simulations demonstrate that despite the theoretical high increase in complexity, the algorithm is suitable even for a quasi-dynamic frequency assignment scheme in practical situations. The algorithm enhances the spectrum utilization in cellular networks while reducing harmful interference.
机译：在本文中，我们扩展了现有的启发式算法，用于蜂窝通信网络中的固定频率分配，以解决相邻信道干扰（ACI）的影响。我们的算法利用载波干扰比的估计值来代替二进制信道分离约束。扩展算法避免了过分乐观的频率分配，这种分配不能保证无干扰的运行环境。它的成本是增加的计算复杂性。当考虑ACI时，我们估计算法复杂度的上限。仿真表明，尽管理论上增加了复杂性，但该算法甚至适用于实际情况下的准动态频率分配方案。该算法提高了蜂窝网络的频谱利用率，同时减少了有害干扰。

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