Abstract
As wireless communication has developed rapidly, spectrum plays an essential role in system performance. How to allocate the limited spectrum is a critical problem. In this paper, we research spectrum allocation algorithms in the wireless system, such as Simultaneous Water-Filling (SWF), Fractional Frequency Reuse(FFR), and Forward-Looking Game(FLG). Then we combine the SWF and FFR to make a new method. We demonstrate the performance of each method. Our method saves spectrum in a wireless system, and it can also reduce the interference between different users. Our method, namely Dynamic Method, has an actual meaning because the number of users always changes in some cell, and this method can adjust to the wireless system dynamically. In this way, our method might have a more general use.
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