Codes With Low Peak-to-Average Power Ratio for OFDM Systems

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Executive Summary

Orthogonal Frequency Division Multiplexing (OFDM) is a promising way to provide large data rates at reasonable complexity in wireless fading channels. However, a major disadvantage of OFDM is its high Peak to Average Power Ratio, which significantly decreases the efficiency of the transmitter power amplifier and hence forms a major obstacle in implementing OFDM in communication systems. Several techniques have been proposed to treat this limitation. This paper shows the possibility of using complementary codes for decreasing the PAP ratio.

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