Energy Efficient Coexistence of WiFi and WiMAX Systems Sharing Frequency Band

Various wireless communication systems in a shared frequency band such as 2.4GHz ISM band are operating. This causes the mutual interference among the wireless communication systems, and makes worse the performance of each of them. They should use more energy to achieve the desired quality of service. Many studies have been carried out to solve the mutual interference problem, called the coexistence problem. In this paper, we quantitatively analyze the effect of the mutual interference between Wi-Fi and WiMAX systems, and propose a method to solve the problem and evaluate its performance by simulation.

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