Subblock Aided OFDM with Index Modulation

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Balkan Journal of Electrical and Computer Engineering
Volume:7 Issue:2
Subblock Aided OFDM with Index Modulation

Subblock Aided OFDM with Index Modulation

Pages : 156-161

View : 48 | Download : 7

Publication Date : 2019-04-30

Article Type : Research Paper

Abstract :Recently, orthogonal frequency-division multiplexing insert ignore into journalissuearticles values(OFDM); with index modulation insert ignore into journalissuearticles values(IM); has been appeared as a novel method for future wireless communication systems. However, such a mechanism has low spectral efficiency due to some sub-carriers are not activated in order to implicitly convey information. In this paper, a subblock dependent approach, called sub-block aided OFDM-IM insert ignore into journalissuearticles values(SA-OFDM-IM); technique, is proposed for spectral efficiency enhancement of the OFDM-IM scheme with low complexity. The simulation results illustrate that the proposed SA-OFDM-IM and well known OFDM-IM have the same bit error rate insert ignore into journalissuearticles values(BER); performance while SA-OFDMIM has 40% more spectral efficiency with low complexity
Keywords : Orthogonal frequency division multiplexing OFDM, index modulation IM, spatial modulation SM,

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