A New Modified SLM Scheme for Wireless OFDM Systems Without Side Information

作者：Ji, Jinwei^*; Ren, Guangliang

来源：IEEE Signal Processing Letters, 2013, 20(11): 1090-1093.

DOI：10.1109/LSP.2013.2278286

• Orthogonal frequency-division multiplexing (OFDM)
• peak-to-average power ratio (PAPR)
• selected mapping (SLM)
• side information (SI)

To avoid the transmission of side information and decrease the computational complexity in the conventional selected mapping (SLM) scheme, a novel set of conversion matrices (CMs) is proposed for the modified SLM scheme, and the signal processing scheme to remove the weighted factors on each sub-carrier is also derived for wireless orthogonal frequency-division multiplexing (OFDM) systems. Computer simulations show that, without side information, the new scheme can achieve similar peak-to-average power ratio (PAPR) reduction and bit error rate (BER) performance with even lower computational complexity as compared with the available modified SLM schemes with the CMs.

• 出版日期2013-11
• 单位西安电子科技大学