  In this paper, a new peak-to-average power ratio (PAPR) reduction scheme for
orthogonal frequency division multiplexing (OFDM) is proposed based on the
selected mapping (SLM) scheme. The proposed SLM scheme generates alternative
OFDM signal sequences by cyclically shifting the connections in each subblock
at an intermediate stage of inverse fast Fourier transform (IFFT). Compared
with the conventional SLM scheme, the proposed SLM scheme achieves similar PAPR
reduction performance with much lower computational complexity and no bit error
rate (BER) degradation. The performance of the proposed SLM scheme is verified
through numerical analysis. Also, it is shown that the proposed SLM scheme has
the lowest computational complexity among the existing low-complexity SLM
schemes exploiting the signals at an intermediate stage of IFFT.
