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Single-carrier frequency division multiple access (SC-FDMA) is a wireless transmission technology based on orthogonal frequency-division multiplexing. SC-FDMA is considered an uplink transmission technology according to long-term evolution standards and long-term evolution advanced standards, the latter of which is the transmission standard for fourth-generation mobile communication systems. A peak-to-average power ratio (PAPR) can be used to assess the power efficiency of transmitters. For a transmitter, a higher PAPR indicates lower power efficiency. The PAPR of an SC-FDMA system increases as the order of modulation increases, reducing the efficiency of the power amplifier. The method suggested in this paper is a new PAPR improvement technique based on product-coded modulation codes, in which the component codes of the product codes are built using Reed---Muller codes. The suggested method uses product-coded modulation to develop selective mapping (SLM). Unlike the traditional SLM technique, this method does not require side information to be transmitted to the receiver but proposes a mechanism for producing a phase factor to improve PAPR performance. The simulation results show that the suggested method produces higher PAPR efficiency compared with the conventional SC-FDMA system. In addition, multilevel coding, modulation technology, and PAPR improvement techniques are integrated into the suggested method to improve coding gains as well as spectral and PAPR efficiency.

wireless personal communications

Erratum to: Using Improved Product-Coded Modulation Codes to Reduce the Peak-to-Average Power Ratio in Single-Carrier Frequency Division Multiple Access Systems