This is a video lecture to summarize the basic concept of wireless communication, including the wireless channel model and transmission schemes. It will be useful if you want to understand what governs the data transmission rate in the wireless communication systems. You will be also introduced to the Shannon's capacity formula and its physical meaning. Furthermore, OFDM technique is explained for broadband wireless communication. Note that some notations in the presetation are broken in the course of converting them into the video file. In order to correct them, please refer to the lecture note attached herein.