What is OFDM technique?

Orthogonal frequency division multiplexing (OFDM) is a modulation technique that is used in several applications ranging from cellular systems (3GLTE, WiMAX), wireless local area networks (LANs), digital audio radio, underwater communications, and even optical light modulation.

What is OFDMA technology and how it works?

OFDMA is a multi-user version of OFDM enabling concurrent AP communication (uplink & downlink) with multiple clients by assigning subsets of subcarriers, called Resource Units (RUs) to the individual clients. OFDMA allows multiple users with varying bandwidth needs to be served simultaneously.

Where is Ofdma used?

OFDMA is the latest technology, and it has been used in the wireless LAN (Wi-Fi) long-term evolution (LTE) and WiMAX systems. LTE is also known as 4G. OFDMA provides optimal spectral efficiency as well as variable bandwidth and provision for many independent channels.

What is the full form of Ofdma?

Orthogonal frequency-division multiple access (OFDMA) is a multi-user version of the popular orthogonal frequency-division multiplexing (OFDM) digital modulation scheme.

Why OFDM is used?

The main advantage of OFDM over single-carrier schemes is its ability to cope with severe channel conditions (for example, attenuation of high frequencies in a long copper wire, narrowband interference and frequency-selective fading due to multipath) without the need for complex equalization filters.

What is Cisco Ofdma?

OFDMA (Orthogonal Frequency Division Multiple Access) is arguably the most significant feature of Wi-Fi 6. OFDMA allows sub-carriers in a channel bandwidth to be grouped into smaller portions called “Resource Units” (RU).

What is WIFI OFDMA?

OFDMA is a multi-user version of the OFDM digital-modulation technology. In Wi-Fi 6 (802.11ax), OFDMA is one of the critical feature to improve network performance. Both OFDM and OFDMA split transmitted data into several small packets, to move small bits of information in a simple way.