Modulation Based on a Simple MDS Code: Achieving Better Error Performance Than Index Modulation and Related Schemes

Yarkin, Ferhat; Coon, Justin P.

doi:10.1109/tcomm.2021.3119365

Cited by 11 publications

(4 citation statements)

References 31 publications

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“…Substituting ( 12) into (11) and calculating the expectation of P (x a → x b |h r ), we obtain the following approximate unconditional PEP expression as in [9]:…”

Section: Derivation For Optimal Discrete Phase Shiftsmentioning

confidence: 99%

“…For example, [9] combined index modulation (IM) with OFDM for exploiting the multi-domain benefits, while [10] integrated the polar code with OFDM for their joint gains. Very recently, two maximum distance separable (MDS) code based modulation schemes were developed and combined with OFDM in [11]. The bit error rate (BER) performance of MDS based modulation schemes were proved to be attractive, since the MDS code integration helps increase the minimum Hamming distance between modulation symbols [12].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Maximum Distance Separable Coded OFDM-RIS for 6G Wireless Communications

Huang

Yang

Zhang³

et al. 2023

IEEE Wireless Commun. Lett.

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“…Substituting ( 12) into (11) and calculating the expectation of P (x a → x b |h r ), we obtain the following approximate unconditional PEP expression as in [9]:…”

Section: Derivation For Optimal Discrete Phase Shiftsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Novel Maximum Distance Separable Coded OFDM-RIS for 6G Wireless Communications

Huang

Yang

Zhang³

et al. 2023

IEEE Wireless Commun. Lett.

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“…In [6] and [7], OFDM‐IM based in‐vehicle power line communication system and MM‐OFDM‐IM system applied Low‐density parity check (LDPC) codes, separately. By using the maximum distance separable (MDS) code construction for distinguishable constellation sets, [8] analyzed the OFDM‐MDS scheme which can obtain an increasing number of index bits.…”

Section: Introductionmentioning

confidence: 99%

A joint denoising and deep learning detector for OFDM‐IM

et al. 2023

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Only a subset of subcarriers are activated in orthogonal frequency division multiplexing‐index modulation (OFDM‐IM), which achieves higher energy efficiency and resists frequency offset. In the OFDM‐IM, the energy of the received signal is computed and then combined with pre‐processed signal to create the input of detection network. Inspired by image denoising technology, this study enhances the detection performance by denoising the pre‐processed data and improving the energy distribution in the OFDM‐IM system. First, considering that the noise reduction process of the pre‐processed signal can effectively mitigate the distortion by noise which affects the detection accuracy, this study proposes a two‐phase neural network termed as Deep‐Denoising‐IM through the combination of a noise reduction network and a deep learning detection method. Then, to better determine the position of the active carriers, a joint decision method of the denoised data and the received signal is designed as the IQ signal of the denoised data may change the quadrant of original signal distribution. In addition, the pre‐processed data sample has insufficient diversity. Considering that data enhancement can increase the noise of the signal samples, this study proposes a method to strengthen the silent carriers in the model training phase, which improves the generalization ability of the model and further enhances the denoising performance. Simulation results show that Deep‐Denoising‐IM outperforms the existing detectors in terms of mean square error (MSE) and bit error rate (BER) under the Rayleigh fading channel.

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“…In a similar manner, the authors in [31], [33] also designed the (generalized-)multiple-mode OFDM-IM ((G-)MM-OFDM-IM) scheme to transmit modulated symbols via the full set of subcarriers. To improve the SE and BER performance of DM-IM-OFDM and MM-OFDM-IM, the OFDM with maximum distance separable code (OFDM-MDS) scheme was proposed and analyzed in [34], [35], which obtains an increasing number of index bits by using the MDS code construction for distinguishable constellation sets. In addition to the theoretical research, the practical applications of OFDM-IM were investigated in recent years, e.g., for vehicle-to-vehicle communications [36], and cognitive radio networks [37].…”

mentioning

confidence: 99%

Composite Multiple-Mode Orthogonal Frequency Division Multiplexing With Index Modulation

Dang

Huang

et al. 2023

IEEE Trans. Wireless Commun.

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In this paper, we propose a composite multiplemode orthogonal frequency division multiplexing with index modulation (C-MM-OFDM-IM) scheme to increase the spectral efficiency (SE) of OFDM-IM systems by extending the indexing to the energy and constellation domains. In C-MM-OFDM-IM, the information bits are mapped to not only the subcarrier activation patterns (SAPs) and modulation symbols, but also the energy allocation patterns (EAPs) and constellation activation patterns (CAPs). To cope with the practical situations, we propose a variant IM scheme named C-MM-OFDM-IM-II to build a new mapping rule between information bits and the increased CAPs, capable of further increasing the SE of C-MM-OFDM-IM. Upper-bounded bit error rate (BER) and lower-bounded achievable rate are both derived in closed-form to evaluate the performance of C-MM-OFDM-IM(-II). Moreover, we further propose two enhanced schemes, named generalized C-MM-OFDM-IM(-II) and C-MM-OFDM with in-phase/quadrature IM(-II), where the former jointly considers all SAPs, EAPs, CAPs and modulated symbols, while the latter expands the index implementation to the in-phase and quadrature constellation domains. Simulation results show that C-MM-OFDM-IM(-II) outperforms the conventional OFDM-IM related schemes, especially in the high signalto-noise ratio (SNR) region, and verify the accuracy of the theoretical analysis for the upper-bounded BER and achievable rate.

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Modulation Based on a Simple MDS Code: Achieving Better Error Performance Than Index Modulation and Related Schemes

Cited by 11 publications

References 31 publications

A Novel Maximum Distance Separable Coded OFDM-RIS for 6G Wireless Communications

A Novel Maximum Distance Separable Coded OFDM-RIS for 6G Wireless Communications

A joint denoising and deep learning detector for OFDM‐IM

Composite Multiple-Mode Orthogonal Frequency Division Multiplexing With Index Modulation

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