Effects of High Peak Power and its analysis of OFDM signals
Abstract
One of the major drawbacks of any Multi-Carrier Modulation (MCM) system, which is often an obstacle to its use, is the fact that the signal has a non-constant envelope, that is, it exhibits peaks whose power strongly exceeds the mean power. The power analysis depends on the number of iterations performed, which also increases the complexity of the transmitter. In this paper, several replicas of the OFDM symbol of a given data frame is formed and the one with the minimum peak power is chosen for transmission where significant gains can be achieved. Simulation results shows the performance analysis of the reliable reduction of peak power which is of viable importance for the practical implementation of OFDM schemes.
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