Term | Description |
OFDMA | Orthogonal Frequency-Division Multiple Access (OFDMA) is a method of encoding digital data on multiple frequencies. It is a digital modulation scheme, allowing a large number of sub-carrier signals to carry data on several parallel data streams or channels. The technology works by splitting the radio signal into multiple smaller sub-signals that are then transmitted simultaneously at different frequencies. OFDM reduces the amount of crosstalk in signal transmissions. It also provides for assigning subsets of sub-carriers to different users, allowing for simultaneous low data rate transmission from several users on the same frequency band. OFDMA is used by many cable and wireless technologies, such as, ADSL, MoCA home networking, Docsis 3.1, LTE and WiMAX. |