Research on Spectrum Allocation of HF Access Network Based on Intelligent Frequency Hopping

By directing at the problem that the existing fixed spectrum allocation method of HF access network cannot satisfy the new requirement of applying intelligent frequency hopping technology, the spectrum demand of intelligent frequency hopping HF access network is analyzed, and a spectrum allocation model based on graph coloring theory is established for the spectrum allocation issue of HF access network users. Besides, spectrum allocation algorithm applicable to intelligent frequency hopping HF access network is proposed. According to the simulation results, this method can effectively solve application problems of intelligent frequency hopping technology in HF access network, and meanwhile quickly, efficiently and accurately complete allocation of usable spectrums, compared with fixed frequency communication of using fixed spectrum allocation method, intelligent frequency hopping of adopting this method can obviously increase subnet reachability and network throughput of HF access network.