- Balkan Journal of Electrical and Computer Engineering
- Volume:7 Issue:2
- Subblock Aided OFDM with Index Modulation
Subblock Aided OFDM with Index Modulation
Authors : Yusuf ACAR
Pages : 156-161
Doi:10.17694/bajece.514324
View : 14 | Download : 4
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 complexityKeywords : Orthogonal frequency division multiplexing OFDM, , index modulation IM, , , spatial modulation SM,