Title :
A novel coding-rotated-modulation OFDM scheme
Author :
Wu, Zhanji ; Fu, Tingting ; Wang, Xu ; Zhang, Liling ; Gao, Yunmeng ; Ma, Cheng ; Wang, Wenbo
Author_Institution :
Dept. of Inf. & Telecommun. Eng., Beijing Univ. of Post & Telecommun., Beijing, China
Abstract :
The increasing need of high data rate transmissions over fading channels has drawn attention to modulation schemes with high spectral efficiency such as the multidimensional rotated MPSK/QAM constellations. A novel coding-rotated-modulation OFDM (orthogonal frequency division multiplexing) scheme is proposed. The new scheme takes full advantage of the modulation diversity of rotated MPSK/ QAM (quadrature amplitude modulation), the frequency diversity of OFDM system and the coding-gain of Turbo codes all together. Simulation results have turned out this new scheme can significantly outperform the conventional BICM (bit-interleaved coded modulation)-OFDM scheme.
Keywords :
OFDM modulation; fading channels; modulation coding; phase shift keying; quadrature amplitude modulation; turbo codes; bit-interleaved coded modulation; coding-rotated-modulation; fading channels; frequency diversity; modulation diversity; multiple phase shift keying; orthogonal frequency division multiplexing; quadrature amplitude modulation; turbo codes; Amplitude modulation; Code division multiplexing; Fading; Frequency diversity; Intersymbol interference; Modulation coding; Multidimensional systems; OFDM modulation; Quadrature amplitude modulation; Turbo codes; OFDM; Turbo codes; coded-modulation; rotated modulation;
Conference_Titel :
Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4816-6
Electronic_ISBN :
978-1-4244-4817-3
DOI :
10.1109/ICCOMTA.2009.5349149
