A Precoding Scheme for N-Continuous OFDM

作者:Zheng, Yamin*; Zhong, Jie; Zhao, Minjian; Cai, Yunlong
来源:IEEE Communications Letters, 2012, 16(12): 1937-1940.
DOI:10.1109/LCOMM.2012.102612.122168

摘要

In this letter, we present a novel, with-memory precoding scheme for N-continuous OFDM, which is based on the decomposition of a relevant matrix into its null space and orthogonal complement subspace. The transmitted data can be fully recovered by the proposed scheme, while the out-of-band emission performance is retained as other N-continuous OFDM signals. The data rate loss is reduced to half compared to the memory-less scheme. Bit-error-rate performance can be improved by exploiting the redundant information in the subsequent OFDM symbol.