New interleaving scheme for CE-OFDM systems using chaotic maps
WOCN'09 Proceedings of the Sixth international conference on Wireless and Optical Communications Networks
Peak-to-average power ratio reduction based on cyclic iteration partial transmit sequence
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
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In this paper, we consider reduction of PAPR in OFDM systems with BPSK subcarriers by combining SLM and binary cyclic codes. This combining strategy can be used for both error correction and PAPR reduction. We decompose a binary cyclic code into direct sum of two cyclic subcodes: the correction subcode used for error correction and the scrambling subcode for PAPR reduction. The transmitted OFDM signal is selected that achieves minimum PAPR, from the set of binary cyclic codewords. The received signal can be easily decoded without the need of any side information. Simulations show that the proposed scheme with simplex code as scrambling subcode achieves good PAPR reduction.