Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier modulation technique. It achieves high speed data rates, prevents inter-symbol interference (ISI), and overcomes multi-path signals. It also allows communications in areas where non-line-of sight (NLOS) is a limiting factor for wireless deployments. OFDM technology is not new. It is an innovative technique that has become commercially available and it meets the market's demand. OFDM provides a solid foundation for wireless operator's business plans for profitability based on a large subscriber base.
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