OFDM (Orthogonal Frequency Division Multiplexing) is a digital modulation technique that divides a high-speed data stream into multiple lower-speed substreams, each of which is transmitted on a separate sub-carrier frequency.
The key components of OFDM include panama mobile database subcarriers, which eliminate inter-carrier interference, and parallel transmission, which improves frequency utilization efficiency and resistance to selective fading.
OFDM began with the work of Robert W. Chang at Bell Labs in 1966 and has evolved over time, such as by increasing guard intervals, to become the core technology in modern digital communications systems.
Definition and Basic Principles of OFDM
The main idea of OFDM is to divide a high-speed data stream into multiple parallel low-speed streams, each of which is modulated on orthogonal subcarriers. This technique allows efficient use of the spectrum and is resistant to frequency-selective fading. OFDM's orthogonality principle eliminates interference between carriers, facilitating equalization at the receiver.
What is OFDM and how does it work?
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