OFDM channel model in the problem of the IEEE 802.11 network efficiency estimation

This article discusses the issues of ensuring the efficiency of the IEEE 802.11 standard network. An orthogonal frequency-division multiplexing channel model is proposed as a function between its basic parameters and the application conditions. The frame transmission time is selected as the main characteristic. Modern enterprise wireless networks require high signal strength as coverage requirements and hence signal strength from the access point cannot be itself a good parameter for data rate selection. Thus, analytical models are obtained for the number of bits in the symbol and the data frame transmission time as a function of the signal to noise ratio for the IEEE 802.11ac standard. The model analysis shows that the error of the model is less than 6% for the most of the data frame size values. The proposed analytical models can be used to assess the effectiveness of the network and, thus, help in the design process of the modern enterprise networks, which require high signal strength for wireless coverage.