Dual-Mode Index Modulation Aided OFDM

Mao, Tianqi; Wang, Zhaocheng; Wang, Qi; Chen, Sheng; Hanzo, Lajos

doi:10.1109/access.2016.2601648

Cited by 262 publications

(187 citation statements)

References 26 publications

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“…1 under an AWGN channel. For the case of a frequency-selective Rayleigh fading channel without precoding, the dual-mode OFDM-IM system performs better than the OFDM-IM system, the same observation made in [6]. Both the dual-mode OFDM-IM and OFDM-IM systems use subcarrier indices to transmit information bits in addition to those information bits transmitted by constellation symbols.…”

Section: Simulation Results and Comparisonssupporting

confidence: 53%

“…The frequency-selective Rayleigh fading channel used in the simulation is similar to that in [5,6] and has a CIR length of V ¼ 10. The number of subcarriers is set to N ¼ 128, which is divided into G ¼ 32 groups with F ¼ 4 subcarriers per group.…”

Section: Simulation Results and Comparisonsmentioning

confidence: 99%

“…The number of subcarriers is set to N ¼ 128, which is divided into G ¼ 32 groups with F ¼ 4 subcarriers per group. The CP length is chosen to be L ¼ 16 [5,6]. All systems are simulated and compared under two channel scenarios: one with AWGN only, and one under the presence of frequency-selective Rayleigh fading.…”

Section: Simulation Results and Comparisonsmentioning

confidence: 99%

“…The active subcarriers transmit constellation symbols while inactive subcarriers transmit nothing (i.e., being turned off). More recently, a dual-mode OFDM-IM scheme is proposed as an extension of OFDM-IM [6]. The extension is that a different constellation is used for subcarriers that are supposed to be inactive in OFDM-IM.…”

Section: Introductionmentioning

confidence: 99%

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Performance comparison of IM-based OFDM and OFDM with multiple constellations

Nguyen

2017

IEICE ComEX

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This paper compares performance of index modulation (IM) based OFDM to a more flexible version of OFDM, known as OFDM with multiple constellations (OFDM-MConst). To deliver the same spectral efficiency as in the IM-based OFDM, the OFDM-MConst employs different constellations in different subcarriers. The performance comparison between IM-based OFDM and OFDM-MConst is done for both cases of "no precoding" and "with precoding" of data symbols. Thanks to the multipath diversity gain achieved with precoding and enjoyed by all the information bits, the precoded-OFDM-MConst is shown to significantly outperform precoded-IM-based-OFDM systems over frequency-selective Rayleigh fading channels. Keywords: OFDM, index modulation, constellation precoding, multipath diversity Classification: Wireless Communication Technologies References[1] Z. Liu, Y. Xin, and G. B. Giannakis, "Linear constellation precoding for ofdm with maximum multipath diversity and coding gains," IEEE Trans. Commun., vol. 51, pp. 416-427, Mar. 2003. DOI:10.1109/TCOMM.2003 N. H. Tran, H. H. Nguyen, and T. Le-Ngoc, "Subcarrier grouping for OFDM with linear constellation precoding over multipath fading channels," IEEE Trans. Veh.

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Section: Simulation Results and Comparisonssupporting

confidence: 53%

Section: Simulation Results and Comparisonsmentioning

confidence: 99%

Section: Simulation Results and Comparisonsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance comparison of IM-based OFDM and OFDM with multiple constellations

Nguyen

2017

IEICE ComEX

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“…A generalized MCIK-OFDM is presented in [8], where the number of active sub-carriers is no longer fixed. Dualmode OFDM (DM-OFDM) is proposed in [9], which exploits inactive sub-carriers to carry additional data. Recently, the novel frameworks to derive the symbol error probability (SEP) and the BER of MCIK-OFDM under channel state information (CSI) uncertainty can be found in [10], [11], respectively.…”

Section: Introductionmentioning

confidence: 99%