Orthogonal frequency department Multiplexing (OFDM) is a Method, technique or scheme for Digital multi-provider Modulation using many intently spaced subCarriers – a previously modulated sign modulated into some other Signal of better frequency and Bandwidth. Each of those subcarriers carries numbers of parallel facts streams or channels and is modulated conventionally at a low symbol fee; those are organizations of bits of facts related to (but no longer the same as) gross bitrate, that is expressed in bits/2d.
This term is likewise called Coded OFDM (COFDM) and discrete multi-tone modulation (DMT), used for both wi-fi and bodily conversation mediums.
The term “orthogonal” is absolutely an adjective describing matters appearing independently or in an uncorrelated manner; in this example, any two alerts of an OFDM-based product working with out dependence on, or interference with, one another.
OFDM is used for Wideband digital verbal excHange, which is commonly used for digital television and audio Broadcasting (radio) in addition to Broadband Internet get admission to and Wireless Networking. OFDM is very similar to FDM (frequency department multiplexing) however with generation purposely emphasizing the minimization of crosstalk or signal interference from different close by signal wearing conversation mediums. OFDM uses many slender band signals instead of a signal modulated at a high image price and a big bandwidth.
OFDM-based totally merchandise consist of:
When we refer to OFDM as an acronym of Orthogonal Frequency Division Multiplexing, we mean that OFDM is formed by taking the initial letters of each significant word in Orthogonal Frequency Division Multiplexing. This process condenses the original phrase into a shorter, more manageable form while retaining its essential meaning. According to this definition, OFDM stands for Orthogonal Frequency Division Multiplexing.
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