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Peak-to-average power control in OFDM using standard arrays of linear block codes

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2 Author(s)
Kyeongcheol Yang ; Dept. of Electron. & Electr. Eng., Pohang Univ. of Sci. & Technoloby, Kyungbuk, South Korea ; Chang, S.-I.

We propose an efficient scheme to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems by using the standard arrays of linear block codes. Our scheme may be regarded as a modified version of the selective mapping (SLM), which is a probabilistic method to reduce the PAPR by selecting a signal with minimum PAPR from several candidates as the transmit signal. Because the coset leaders of a linear code are used for scrambling in our scheme, no side information is required to be transmitted and the received signal can be easily decoded by syndrome decoding. Simulation results show that our scheme has good performance in PAPR reduction.

Published in:

Communications Letters, IEEE  (Volume:7 ,  Issue: 4 )