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One of the major challenges of Orthogonal Frequency Division Multiplexing (OFDM) is that the output signal may have a potentially very large Peak-to-Average Power Ratio (PAPR, also known as PAR). The resulting technical challenges, as well as PAPR-reduction techniques and related issues, have been widely studied and reported in the research literature. The most widely PAPR reduction techniques known are based on amplitude clipping or on some forms of coding. However, comparative analysis of those methods could be a complex task, because the effects of those methods are usually analyzed using simulations or by simple case study, and no general analytical framework for such analysis exists.
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