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cs.NI2019
Cyclic Prefix Adaptation with Constant Overall Symbol Time for DFT-spread-OFDM and OFDM
Liangping Ma, Tao Deng, Alpaslan Demir
For DFT-spread-OFDM or OFDM, if the delay spread varies in a wide range and the symbol duration is relatively short, adapting the cyclic prefix (CP) duration rather than using a fi…
cs.NI2019★ 1 cited
Four-Dimension Cross Constellations with Gray Mapping
Liangping Ma, Hae Chung, Byung K Yi
Recently a four-dimension (4D) cross constellation has been proposed, where a 4D-vector is drawn from two -ary QAM constellations, in an effort to reduce the peak-to…