Title :
A modulation with higher bandwidth efficiency than OFDM
Author :
He, Mingyan ; Liang, Dequn ; Cao, Qisheng
Author_Institution :
Signal & Image Process. Inst., Dalian Maritime Univ., Dalian, China
Abstract :
OFDM is a practical modulation technique with highest frequency efficiency at present and it has been adopted by many international communication standards. In this paper a novel time-shift non-orthogonal multi-carrier modulation (TS-NMCM) technology which has higher bandwidth efficiency and more outstanding technology performances than OFDM is introduced; the comparison between TS-NMCM and OFDM on bandwidth efficiency is made; finally the experiments are given. The results in theoretical analysis and experiment show that the ratio of bandwidth efficiency between both is 2.15~5.36.
Keywords :
modulation; high bandwidth efficiency; modulation technique; time shift non-orthogonal multicarrier modulation technology; Bandwidth; Constellation diagram; Equations; Mathematical model; OFDM; Quadrature amplitude modulation; Nyquist rate; OFDM; Time-Shift Non-orthogonal Multi-Carrier Modulation; bandwidth efficiency;
Conference_Titel :
Signal Processing Systems (ICSPS), 2010 2nd International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-6892-8
Electronic_ISBN :
978-1-4244-6893-5
DOI :
10.1109/ICSPS.2010.5555645
