What is OFDM?


OFDM stands for Orthogonal Frequency Division Multiplexing. It is a digital modulation technique used in wireless communication systems to transmit data over a number of closely spaced subcarriers. OFDM is known for its ability to handle multipath interference and provide high data rates, making it ideal for high-speed communication applications.

How does OFDM work?

OFDM works by dividing the available spectrum into multiple subcarriers, each carrying a portion of the data to be transmitted. These subcarriers are closely spaced in frequency and are orthogonal to each other, which helps in reducing interference between them. This allows for efficient use of the available bandwidth and enhances the overall system performance.

Applications of OFDM

OFDM is commonly used in various communication systems such as Wi-Fi, LTE, and digital television broadcasting. Its ability to handle frequency-selective fading and multipath interference makes it a popular choice for high-speed data transmission over wireless channels. OFDM is also used in DSL (Digital Subscriber Line) technology for broadband internet access.

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