Adaptive GL-Coded Spectrally-Precoded OFDM with Constant Transmission Power

W.-L. Lin, C.-D. Chung, and Y.-R. Peng (Taiwan)


Adaptive modulation, orthogonal frequency-division multiplexing, spectral precoding, average spectral efficiency.


This paper studies the adaptive transmission technique adopting the GL-coded spectrally-precoded orthogonal frequency-division multiplexing (SP-OFDM) signals with constant transmission power on the flat fading channel. By jointly adapting the precoding order for spectral pre-coder and the component modulation for OFDM, adaptive GL-coded SP-OFDM is shown to outperform conventional adaptive OFDM significantly in average spectral efficiency.

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