In this paper, we propose a new subblock partitioning scheme using the subblock partition matrix for the partial transmit sequence. Based on the convolution property of the inverse fast Fourier transform (IFFT), the subblock partition matrix can be derived. The signal subsequences for the PTS scheme are generated from the circular convolution of the signal sequence and the subblock partition matrix. Since several IFFT operations of the signal subsequences are replaced by the convolution of the signal sequence with the proposed subblock partition matrix, only one IFFT operation is required. The interleaved subblock partitioning scheme is suitable for the proposed subblock partition matrix in terms of complexity.
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