In this paper, different channel deployment schemes are compared and discussed according to the usage of users in cellular network coverage, the role of fractional frequency reuse in network construction is analyzed through the comparison of different algorithms, and the performance of different algorithms when applying partial frequency multiplexing or not is analyzed from the perspective of average channel capacity. Five different algorithms are used in this paper which are Integer Frequency Reuse 3 (IFR3), Simultaneous Water-Filling (SWF), Transmit Interference Temperature Limit with a fixed S (tx-ITL with a fixed S), Self-Optimising Transmit Interference Temperature Limit (Self-Optimising tx-ITL) and A Forward-Looking Game (FLG). In addition to Signal-to-Noise Ratio (SNR), simulation number, cell number and number of users in each cell remain unchanged to observe the change of channel capacity when the SNR changes with different methods. Through various comparisons, it can be learned that FFR can effectively reduce the interference between users to improve the channel capacity so that the network speed becomes faster and more stable. In addition, the most efficient one of several methods was picked out: FLG+FFR, because it can reach the maximum channel capacity value in the same situation. The work aims to find ways to cater to and satisfy public demand for faster and more stable networks. In the future 5G and 6G development, FFR can be used with more advanced methods and play a more significant role.