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Review Papers | Electronics & Communication Engineering | India | Volume 4 Issue 2, February 2015
Power Reduction Using ACE and NN Schemes
Abstract: Orthogonal Frequency Division Multiplexing abbreviated as OFDM is a method of encoding digital data on multiple carrier frequencies. Along with several advantages, ofdm has a main drawback of having high peak-to-average-power ratio (PAPR). This occurs mainly because of the superposition of subcarrier signals used in ofdm system. We have to reduce this peak-to-average-power ratio and hence here a scheme called active constellation extension (ACE) along with the concepts of neural networks is introduced. Also we present analytical results in comparison with simulations.
Keywords: OFDM, ACE, NN, Peak-to-average-power ratio, BER
Edition: Volume 4 Issue 2, February 2015,
Pages: 1975 - 1977