Multiple input, multiple output with two spatial streams on 80MHz-wide channelsĥ GHz: 433.33Mbps x 2 streams = 866. MR32: Theoretical maximum data transfer rate of 1170Mbps Multiple input, multiple output with three spatial streams MR24/26: Theoretical maximum data transfer rate of 900Mbps MR16/18: Theoretical maximum data transfer rate of 600Mbps Multiple input, multiple output with two spatial streams MR12: Theoretical maximum data transfer rate of 300Mbps Therefore, network administrators should maintain reasonable expectations for connection speeds and keep the above factors in mind. The nature of WiFi technology makes throughput hard to predict. This works in the 2.4GHz band (like 802.11b), but uses the same OFDM. However, wireless clients operating at 802.11b/g/a can cause 802.11n users to slow to less than 54Mbps because the radio must adjust to the lowest common denominator. 802.11b has a maximum raw data rate of 11 Mbit/s and uses the same media access. It also provides a fast maximum speed for home users, and supports a reliable signal range that is not easily obstructed. To increase the wireless range, 802.11g uses the 2.4 Ghz frequency. It is theoretically possible for 802.11n-capable wireless clients to achieve speeds as high as 100Mbps or more depending on the MIMO capabilities of the AP and the wireless client. The 802.11g standard attempts to combine the best of older standards, is backwards compatible with 802.11b devices, and supports bandwidth up to 54 Mbps. The half-duplex nature of wireless combined with other overhead also means that the actual aggregate throughput is typically 50 percent or less of the data rate.
Interference (radio, physical, electrical) and the distance from client device to the Access Point are two major factors that have a negative impact on observed maximum throughput. Physical obstacles, other wireless networks and even everyday household devices like computers, microwaves, and televisions increase interference significantly, especially on the 2.4GHz band.
Therefore throughput should always be considered aggregate throughput.
Also, 802.11 is a shared medium and is limited by other devices connected to the wireless. Limitations and Factors Affecting Throughputįirst and foremost, throughput to the Internet is capped by the ISP and devices upstream of the APs.