An Efficient Spectrum Sharing Method Based on Genetic Algorithm in Heterogeneous Wireless Network

With advances in wireless communication technologies, users can have rich contents not only via wired networks but also via wireless networks such as Cellular, WiFi, and WiMAX. On the other hand, however, lack of spectrum resources becomes an important problem for future wireless networks. To overcome this problem, dynamic spectrum access technology receives much attention. In this paper, we propose a novel spectrum sharing method based on genetic algorithm in which a WiFi system temporarily uses a spectrum band of WiMAX system in WiFi/WiMAX integrated networks as a typical heterogeneous wireless network. Finally, we confirm the effectiveness of the proposed method by simulation experiments.