Devolo

OFDMA – Brief definition

OFDMA provides a significant performance boost when multiple devices are using the WiFi network simultaneously. By dividing the available data channels into small units, OFDMA enables highly efficient transport of data packets, allowing WiFi access points to serve numerous devices concurrently.

WiFi channels are a scarce resource in home networks and are heavily utilized. PCs, laptops, smartphones, tablets, and smart TVs are among the most avid data consumers, and now even household and small appliances with smart functions are contributing to the congestion. Traffic jams on the data highway are therefore inevitable.

What is OFDMA?

OFDMA enables WiFi access points to serve multiple clients simultaneously. For this purpose, the WiFi channel is flexibly divided into smaller resource units, which the access point can then dynamically assign to many devices. This way, the available bandwidth is better utilized, and the capacity is dramatically increased.


While Multi-User MIMO adds more "lanes" to the wireless data highway, enabling the simultaneous servicing of multiple devices, OFDMA offers the most efficient transport of data packets through the flexible use of these "lanes" – for even more devices! This results in optimized data throughput without noticeable latency when the WiFi network is used simultaneously by many devices.

What can OFDMA do?

  • Efficiency improvement through "carpooling"
  • The available channels are flexibly divided into smaller units (Resource Units), which are then dynamically assigned by the access points to the devices.
  • This multitasking exponentially increases efficiency and reduces network overhead. Additionally, the available bandwidth is utilized more effectively, significantly boosting capacity.
  • If narrowband interference occurs in the OFDM signal spectrum, the affected carrier can be excluded from data transmission. The overall data transfer rate is only marginally reduced.
  • OFDMA is particularly relevant in networks with many small transmission packets, such as when using IoT devices.

Top devolo products with OFDMA

* incl. VAT

Details

* incl. VAT

Details

* incl. VAT

Details