Interference elimination is a key aspect of planning and operating wireless networks. Using frequency duplex links is a common practice, where the communication is done via two channels separated in frequency. An optimization problem is how to allocate the channels in the frequency duplex in order to reduce or completely eliminate the interference might occur between links. In a previous paper we revealed the unexpected difference between this problem and polarization setting if the sharpness of the applied beam widths is relaxed in such microwave networks. In this paper we extend the graph theory based approach of this problem and generalize the special cases of the previous study.
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