COMPUTER NETWORKING

Detailed explanation-1: -OFDM is a technique for 3G mobile communication. Clarification: OFDM has developed into a popular scheme for wideband digital communication, used in applications such as digital television and audio broadcasting, DSL internet access, wireless networks, power line networks, and 4G mobile communications.

Detailed explanation-2: -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.

Detailed explanation-3: -Orthogonal Frequency Division Multiplexing (OFDM) is an efficient modulation format used in modern wireless communication systems including 5G. OFDM combines the benefits of Quadrature Amplitude Modulation (QAM) and Frequency Division Multiplexing (FDM) to produce a high-data-rate communication system.

Detailed explanation-4: -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.